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Cessna 17273274 Pilot Operating Handbook

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PILOT'S OPERATING HANDBOOK
FAA APPROVED AIRPLANE FLIGHT MANUAL
THIS DOCUMENT MUST BE
CARRIED IN THE AIRPLANE
AT All TIMES.
THIS HANDBOOK INCLUDES THE MATERIAL REQUIRED TO BE
FURNISHED TO THE PILOT BY CAR PART 3 AND CONSTITUTES
THE FAA APPROVED AIRPLANE FLIGHT MANUAL.
f)
Member of GAMA
and
CESSNA AIRCRAFT COMPANY
I
COPYRIGHT e 1979
CESSNA AIRCRAFT COMPANY
WICHITA, KANSAS, USA
1980 MODEL 172N
7 l 7 3
Serial No.\
':I
Registration No .
G
1 JULY 1979
I
'-f
2 7
G
7
3

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  • Page 1 PILOT'S OPERATING HANDBOOK FAA APPROVED AIRPLANE FLIGHT MANUAL CESSNA AIRCRAFT COMPANY 1980 MODEL 172N 7 l 7 3 Serial No.\ THIS DOCUMENT MUST BE CARRIED IN THE AIRPLANE Registration No . AT All TIMES. THIS HANDBOOK INCLUDES THE MATERIAL REQUIRED TO BE FURNISHED TO THE PILOT BY CAR PART 3 AND CONSTITUTES THE FAA APPROVED AIRPLANE FLIGHT MANUAL.
  • Page 2 THIS MANUAL WAS PROVIDED FOR THE AIRPLANE IDENTIFIED ON THE TITLE PAGE ON ____ _ SUBSEQUENT REVISIONS SUPPLIED BY CESSNA AIRCRAFT COMPANY MUST BE PROPERLY IN­ SERTED. CESSNA AIRCRAFT COMPANY, PAWNEE DIVISION...
  • Page 3 We urge you to read it from cover to cover, and to refer to it frequently. Our interest in your flying pleasure has not ceased with your purchase of a Cessna. World-wide, the Cessna Dealer Organization backed by the Cessna Customer Services Department stands ready to serve you.
  • Page 4 PERFORMANCE­ CESSNA SPECIFICATIONS MODEL 172N PERFORMANCE - SPECIFICATIONS SPEED: Maximum at Sea Level ....125 KNOTS Cruise, 75% Power at 8000 Ft ... . 122 KNOTS...
  • Page 5 Changes and/or additions to this handbook will be covered by revisions published by Cessna Aircraft Company. These revisions are distributed to all Cessna Dealers and to owners of U. 5. Registered aircraft according to FAA records at the time of revision issuance.

  • Page 6: Table Of Contents

    TABLE OF CONTENTS CESSNA MODEL 172N TABLE OF CONTENTS SECTION GENERAL ......1 LIMITATIONS ......2 EMERGENCY PROCEDURES .... 3 NORMAL PROCEDURES ....4 PERFORMANCE ....... 5 WEIGHT & BALANCE/ E Q UIPMENT LIST ....6 AIRPLANE & SYSTEMS DESCRIPTIONS ....7 AIRPLANE HANDLING , SERVICE &...

  • Page 7: General

    CESSNA SECTION 1 MODEL 172N GENERAL SECTION 1 GENERAL TABLE OF CONTENTS Page Three View Introduction Descriptive Data Engine Propeller 1- 3 Fuel . . . Maximum Certificated Weights 1- 5 Standard Airplane Weights . . Cabin And Entry Dimensions .
  • Page 9 SECTION 1 CESSNA GENERAL MODEL 172N 1------ 26'-11" Maximum hei�t shown with nose gear depressed, all tires and nose strut properly inflated, and flashing beacon installed Wheel base length is 65" Propeller ground clearance is 11 3/4" Wing area is 174 square feet Minimum turning radius (*pivot point to outboard wing tip) is 27' -5 1/2"...
  • Page 10 This handbook contains 9 sections, and includes the material required to be furnished to the pilot by CAR Part 3. It also contains supplemental data supplied by Cessna Aircraft Company. Section 1 provides basic data and information of general interest. It also contains definitions or explanations of symbols, abbreviations, and terminology commonly used.
  • Page 11 SECTION 1 CESSNA GENERAL MODEL 172N Fuel Capacity: Standard Tanks: Total Capacity: 43 gallons. Total Capacity Each Tank: 21.5 gallons. Total Usable: 40 gallons. Long Range Tanks: Total Capacity: 54 gallons. Total Capa,city Each Tank: 27 gallons. Total Usable: 50 gallons.
  • Page 12 CESSNA SECTION 1 MODEL 172N GENERAL MAXIMUM CERTIFICATED WEIGHTS Ramp, Normal Category: 2307 lbs. Utility Category: 2007 lbs. Takeoff, Normal Category: 2300 lbs. Utility Category: 2000 lbs. Landing, Normal Category: 2300 lbs. Utility Category: 2000 lbs. Weight in Baggage Compartment, Normal Category: Baggage Area 1 (or passenger on child's seat) - Station 82 to 108: 120 lbs.
  • Page 13 SECTION 1 CESSNA GENERAL MODEL 172N SYMBOLS, ABBREVIATIONS AND TERMINOLOGY GENERAL AIRSPEED TERMINOLOGY AND SYMBOLS KCAS is indicated airspeed corrected Knots Calibrated Airspeed for position and instrument error and expressed in knots. Knots calibrated airspeed is equal to KT AS in standard atmosphere at sea level.
  • Page 14 CESSNA SECTION 1 MODEL 172N GENERAL It is expressed in either degrees Celsius or degrees Fah­ renheit. Standard Standard Temperature is 15 ° 0 at sea level pressure alti­ tude and decreases by 2 ° 0 for each 1000 feet of altitude.
  • Page 15 SECTION 1 CESSNA GENERAL MODEL 172N WEIGHT AND BALANCE TERMINOLOGY Reference Reference Datum is an imaginary vertical plane from Datum which all horizontal distances are measured for balance purposes. Station Station is a location along the airplane fuselage given in terms of the distance from the reference datum.
  • Page 16 CESSNA SECTION 1 GENERAL MODEL 172N Maximum Maximum Landing Weight is the maximum weight ap­ Landing proved for the landing touchdown. Weight Tare Tare is the weight of chocks, blocks, stands, etc. used when weighing an airplane, and is included in the scale read­...
  • Page 17 CESSNA SECTION 2 MODEL 172N LIMITATIONS SECTION 2 LIMITATIONS TABLE OF CONTENTS Page Introduction ..Airspeed Limitations Airspeed Indicator Markings Power Plant Limitations 2- 6 Power Plant Instrument Markings 2 -6 Weight Limits ..
  • Page 19 Section 5. Your Cessna is certificated under FAA Type Certificate No. 3A12 as Cessna Model No. 172N. 1 July 1979...

  • Page 21: Limitations

    CESSNA SECTION 2 MODEL 172N LIMITATIONS AIRSPEED INDICATOR MARKINGS Airspeed indicator markings and their color code significance are shown in figure 2-2. KIAS VALUE SIGNIFICANCE MARKING OR RANGE 33- 85 Full Flap Operating Range. Lower White Arc limit is maximum weight V s 0 in landing configuration.
  • Page 22 SECTION 2 CESSNA LIMITATIONS MODEL 172N 'POWER PLANT INSTRUMENT MARKINGS Power plant instrument markings and their color code significance are shown in figure 2 - 3. RED LINE GREEN ARC YELLOW ARC RED LINE INSTRUMENT MAXIMUM NORMAL CAUTION MINIMUM LIMIT...
  • Page 23 CESSNA SECTION 2 MODEL 172N LIMITATIONS UTILITY CATEGORY Maximum Ramp Weight: 2007 lbs. Maximum Takeoff Weight: 2000 lbs. Maximum Landing Weight: 2000 lbs. Maximum Weight in Baggage Compartment: In the utility category. the baggage compartment and rear seat must not be occupied.
  • Page 24 SECTION 2 CESSNA LIMITATIONS MODEL 172N In the utility category, the baggage compartment and rear seat must not be occupied. No aerobatic maneuvers are approved except those listed below: MANEUVER RECOMMENDED ENTRY SPEED* Chandelles . 105 knots Lazy Eights 105 knots...
  • Page 25 CE SSNA SECTION 2 MODEL 1 72N LIMIT A TIO N S KINDS OF OPERATION LIMITS The airplane is equipped for day VFR and may be equipped for night VFR and/ or IFR operations. FAR Part 91 establishes the minimum required instrumentation and equipment for these operations.
  • Page 26 SECTION 2 CESSNA LIMITATIONS MODEL 172N PLACARDS The following information must be displayed in the form of composite or individual placards. In full view of the pilot: (The "DAY-NIGHT-VFR-IFR" entry, shown on the example below, will vary as the airplane is equipped.)
  • Page 27 CESSNA SECTION 2 MODEL 172N LIMITATIONS On the fuel selector valve (long range tanks): BOTH - 50 GAL. ALL FLIGHT ATTITUDES. TAKEOFF, LANDING. LEFT - GAL. LEVEL FLIGHT ONLY RIGHT - GAL. LEVEL FLIGHT ONLY Near fuel tank filler cap (standard tanks): FUEL 100LL/ 100 MIN.
  • Page 28 SECTION 2 CESSNA LIMITATIONS MODEL 172N In baggage compartment: 120 POUNDS MAXIMUM BAGGAGE AND/OR AUXILIARY PASSENGER FORWARD OF BAGGAGE DOOR LATCH 50 POUNDS MAXIMUM BAGGAGE AFT OF BAGGAGE DOOR LATCH 120 POUNDS COMBINED MAXIMUM FOR ADDITIONAL LOADING INSTRUCTIONS SEE WEIGHT AND BALANCE DATA 7.
  • Page 29 SECTION 3 CESSNA MODEL 172N EMERGENCY PROCEDURES SECTION 3 EMERGENCY PROCEDURES TABLE OF CONTENTS Page 3 - 3 Introduction ... . . 3-3 Airspeeds For Emergency Operation OPERATIONAL CHECKLISTS Engine Failures .
  • Page 30 CESSNA SECTION 3 MODEL 172N EMERGENCY PROCEDURES TABLE OF CONTENTS (Continued) Page 3-13 Emergency Operation In Clouds (Vacuum System Failure) Executing A 180 ° 3-13 Turn In Clouds 3-13 Emergency Descent Through Clouds 3-14 Recovery From A Spiral Dive . . .

  • Page 33: Emergency Procedures

    CESSNA SECTION 3 MODEL 172N EMERGENCY PROCEDURES Touchdown -- SLIGHTLY TAIL LOW. Ignition Switch -- OFF. Brakes -- APPLY HEAVILY. DITCHING Radio -- TRANSMIT MAYDAY on 121.5 MHz, giving location and intentions and SQUAWK 7700 if transponder is installed. Heavy Objects (in baggage area) -- SECURE OR JETTISON.
  • Page 34 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N 6. Cranking -- CONTINUE. Fire Extinguisher -- OBTAIN (have ground attendants obtain if not installed). Engine -- SECURE. Master Switch -- OFF. Ignition Switch -- OFF. Fuel Selector Valve -- OFF. Fire -- EXTINGUISH using fire extinguisher, wool blanket, or dirt.
  • Page 35 CESSNA SECTION 3 EMERGENCY PROCEDURES MODEL 172N Vents/Ca.bin Air/Heat -- OPEN when it is ascertained that fire is completely extinguished. CABIN FIRE Master Switch -- OFF. Vents/Cabin Air/Heat -- CLOSED (to avoid drafts). Fire Extinguisher -- ACTIVATE (if available). WARNING After discharging an extinguisher within a closed cabin, ventilate the cabin.
  • Page 36 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N heat as required. An unexplained loss in engine speed could be caused by carburetor ice or air intake filter ice. Lean the mixture for maximum RPM, if carburetor heat is used continuously. Plan a landing at the nearest airport. With an extremely rapid ice build-up, select a suitable "off airport"...
  • Page 37 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N LOW-VOLTAGE LIGHT ILLUMINATES DURING FLIGHT (Ammeter Indicates Discharge) NOTE Illumination of the low-voltage light may occur during low RPM conditions with an electrical load on the system such as during a low RPM taxi. Under these conditions. the light will go out at higher RPM.
  • Page 39 SECTION 3 CESSNA MODEL 172N EMERGENCY PROCEDURES AMPLIFIED PROCEDURES ENGINE FAILURE If an engine failure occurs during the takeoff run. the most important thing to do is stop the airplane on the remaining runway. Those extra items on the checklist will provide added safety after a failure of this type.
  • Page 40 CESSNA SECTION 3 MODEL 172N EMERGENCY PROCEDURES FORCED LANDINGS If all attempts to restart the engine fail and a forced landing is imminent, select a suitable field and prepare for the landing as discussed under the Emergency Landing Without Engine Power checklist.
  • Page 41 CESSNA SECTION 3 MODEL 172N EMERGENCY PROCEDURES EMERGENCY OPERATION IN CLOUDS (Vacuum System Failure) In the event of a vacuum system failure during flight, the directional indicator and attitude indicator will be disabled, and the pilot will have to rely on the turn coordinator if he inadvertently flies into clouds. The...
  • Page 42 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N Apply full rich mixture. Use full carburetor heat. Reduce power to set up a 500 to 800 ft/ min rate of descent. 4. Adjust the elevator trim and rudder trim (if installed) for a stabilized descent at 70-80 KIAS.
  • Page 43 CESSNA SECTION 3 MODEL 172N EMERGENCY PROCEDURES NOTE In an emergency on airplanes not equipped with an alternate static source, cabin pressure can be supplied to the static pressure instruments by breaking the glass in the face of the rate-of-climb indicator.
  • Page 44 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N ROUGH ENGINE OPERATION OR LOSS OF POWER CARBURETOR ICING A gradual loss of RPM and eventual engine roughness may result from the formation of carburetor ice. To clear the ice, apply full throttle and pull the carburetor heat knob full out until the engine runs smoothly;...
  • Page 45 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N engine power immediately and select a suitable forced landing field. Use only the minimum power required to reach the desired touchdown spot. ELECTRICAL POWER SUPPLY SYSTEM MALFUNCTIONS Malfunctions in the electrical power supply system can be detected by periodic monitoring of the ammeter and low-voltage warning light;...
  • Page 46 SECTION 3 CESSNA EMERGENCY PROCEDURES MODEL 172N RPM taxi. Under these conditions, the light will go out at higher RPM. The master switch need not be recycled since an over-voltage condition has not occurred to de-activate the alternator system. If the over-voltage sensor should shut down the alternator, or if the alternator circuit breaker should trip, a discharge rate will be shown on the ammeter followed by illumination of the low-voltage warning light.
  • Page 47 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES SECTION 4 NORMAL PROCEDURES TABLE OF CONTENTS Page 4- 3 Introduction ..4-3 Speeds For Normal Operation CHECKLIST PROCEDURES Preflight Inspection Cabin ..
  • Page 48 4-15 Cruise ..(EGT). 4-17 Leaning With A Cessna Economy Mixture Indicator Stalls ..4-17 Spins ..4-17 Landing ..
  • Page 49 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES INTRODUCTION Section 4 provides checklist and amplified procedures for the conduct of normal operation. Normal procedures associated with optional systems can be found in Section 9. SPEEDS FOR NORMAL OPERATION Unless otherwise noted, the following speeds are based on a maximum weight of 2300 pounds and may be used for any lesser weight.

  • Page 50: Normal Procedures

    SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172 N NOTE Visually check airplane for general condition during walk-around inspection. In cold weather, remove even small accumulations of frost, ice or snow from wing, tail and control surfaces. Also, make sure that control surfaces contain no internal accumulations of ice or debris.
  • Page 51 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES CHECKLIST PROCEDURES PREFLIGHT INSPECTION (DcABIN Pilot's Operating Handbook -- AVAILABLE IN THE AIRPLANE. Control Wheel Lock -- REMOVE. Ignition Switch -- OFF. Avionics Power Switch -- OFF. Master Switch -- ON. WARNING When turning on the master switch, using an external power source, or pulling the propeller through by hand, treat the propeller as if the ignition switch were on.
  • Page 52 SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N @NOSE Engine Oil Level -- CHECK, do not operate with less than four quarts. Fill to six quarts for extended flight. 2. Before first flight of the day and after each refueling, pull out strainer drain knob for about four seconds to clear fuel strainer of possible water and sediment.
  • Page 53 CESSNA SECTION 4 NORMAL PROCEDURES MODEL 172N 2. Seats, Belts, Shoulder Harnesses-· ADJUST and LOCK. Fuel Selector Valve-· BOTH. Avionics Power Switch, Autopilot (if installed), Electrical Equip­ ment -- OFF. CAUTION The avionics power switch must be OFF during engine start to prevent possible damage to avionics.
  • Page 54 SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N 9. Radios -- SET. Autopilot (if installed} -- OFF. Air Conditioner (if installed} -- OFF. Strobe Lights -- AS DESIRED. Throttle Friction Lock -- ADJUST. Brakes -- RELEASE. TAKEOFF NORMAL TAKEOFF ° °...
  • Page 55 SECTION 4 CESSNA MODEL 172N NORMAL PROCEDURES CRUISE Power -- 2200-2700 RPM (no more than 75% is recommended). Elevator and Rudder Trim (if installed) -- ADJUST. Mixture -- LEAN. DESCENT Fuel Selector Valve -- BOTH. Mixture -- ADJUST for smooth operation (full rich for idle power).
  • Page 56 SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N BALKED LANDING Throttle -- FULL OPEN. Carburetor Heat -- COLD. ° 3. Wing Flaps -- 20 (immediately). Climb Speed -- KIAS. ° Wing Flaps -- 10 (until obstacles are cleared). RETRACT (after reaching a safe altitude and 60 KIAS).

  • Page 57: Cessna Section

    SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N AMPLIFIED PROCEDURES STARTING ENGINE During engine starting, open the throttle approximately 1/ 8 inch. In warm temperatures, one or two strokes of the primer should be sufficient. In cold weather, up to six strokes of the primer may be necessary.
  • Page 58 SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N NOTE CODE WIND DffiECTION Strong quartering tail winds require caution. Avoid sudden bursts of the throttle and sharp braking when the airplane is in this attitude. Use the steerable nose wheel and rudder to maintain direction.
  • Page 59 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES Taxiing over loose gravel or cinders should be done at low engine speed to avoid abrasion and stone damage to the propeller tips. BEFORE TAKEOFF WARM-UP If the engine accelerates smoothly. the airplane is ready for takeoff.

  • Page 60: Note

    SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N takeoff run. Any sign of rough engine operation or sluggish engine acceleration is good cause for discontinuing the takeoff. If this occurs, you are justified in making a thorough full-throttle static run up before another takeoff is attempted.
  • Page 62 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES The Cruise Performance Table, figure 4-3, illustrates the true airspeed and nautical miles per gallon during cruise for various altitudes and percent powers. This table should be used as a guide, along with the available winds aloft information, to determine the most favorable altitude and power setting for a given trip;...
  • Page 63 LEANING WITH A CESSNA ECONOMY MIXTURE INDICATOR (EGT) Exhaust gas temperature (EGT) as shown on the optional Cessna Economy Mixture Indicator may be used as an aid for mixture leaning in cruising flight at 75% power or less. To adjust the mixture, using this indicator, lean to establish the peak EGT as a reference point and then enrichen the mixture by the desired increment based on figure 4-4.
  • Page 64 Cessna 172N. The ca.bin should be clean and all loose equipment (including the microphone and rear seat belts) should be stowed or secured. For a sole flight in which spins will be conducted, the copilot's seat belt and shoulder harness should also be secured.
  • Page 65 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES tended spins of two to three turns or more, the spin will tend to change into a spiral, particularly to the right. This will be accompanied by an increase in airspeed and gravity loads on the airplane. If this occurs, recovery should be accomplished quickiy by leveling the wings and recovering from the resulting dive.
  • Page 66 SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N ° Steep slips should be avoided with flap settings greater than 20 due to a slight tendency for the elevator to oscillate under certain combinations of airspeed, sideslip angle, and center of gravity loadings.
  • Page 67 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES ° and maintain a safe the go-around climb, reduce the wing flap setting to 10 3000 airspeed until the obstacles are cleared. Above feet, lean the mixture to obtain maximum RPM. After clearing any obstacles, the flaps may be retracted as the airplane accelerates to the normal flaps-up climb speed.

  • Page 68: Avionics Power Switch -- Off

    CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES Mixture -- FULL RICH. Throttle -- OPEN 1/ 8 INCH. 7. Ignition Switch -- START. Release ignition switch to BOTH when engine starts. Oil Pressure -- CHECK. Without Pr heat: Prime the engine six to ten strokes while the propeller is being turned by hand with the throttle closed.
  • Page 69 CESSNA SECTION 4 MODEL 172N NORMAL PROCEDURES FLIGHT OPERATIONS Takeoff is made normally with carburetor heat off. Avoid excessive leaning in cruise. Carburetor heat may be used to overcome any occasional engine roughness due to ice. When operating in temperatures below -18 °...
  • Page 70 SECTION 4 CESSNA NORMAL PROCEDURES MODEL 172N of less than 2000 feet is necessary for him to adequately exercise his duty to see and avoid other aircraft. The certificated noise level for the Model 172N at 2300 pounds maxi­ mum weight is 73.8 dB(A). No determination has been made by the Federal Aviation Administration that the noise levels of this airplane are or should be acceptable or unacceptable for operation at, into, or out of, any airport.

  • Page 71: Performance

    SECTION 5 CESSNA PERFORMANCE MODEL 172N SECTION 5 PERFORMANCE TABLE OF CONTENTS Page Introduction ..Use of Performance Charts Sample Problem . Takeoff Cruise ..Fuel Required Landing . . .
  • Page 74 SECTION 5 CESSNA PERFORMANCE MODEL 172N CRUISE CONDITIONS Total distance 320 Nautical Miles Pressure altitude 5500 Feet Temperature ° C (16 ° C above standard) Expected wind enroute 10 Knot Headwind LANDING CONDITIONS Field pressure altitude 2000 Feet Temperature °...
  • Page 75 SECTION 5 CESSNA MODEL 172N PERFORMANCE CRUISE The cruising altitude should be selected based on a consideration of trip length, winds aloft , a nd the airplane's performance. A typical cruising altitude and the expected wind enroute have been given for this sample problem.
  • Page 76 SECTION 5 CESSNA MODEL 172N PERFORMANCE With this factor included, the fuel estimate would be calculated as follows: Fuel to climb, standard temperature Increase due to non-standa. r d temperature (1.3 16%) � Corrected fuel to climb 1.5 Gallons Using a similar procedure for the distance to climb results in 10 nautical miles.
  • Page 77 CESSNA SECTION 5 MODEL 172N PERFORMANCE distance information for the short field technique. The distances corres­ ponding to 2000 feet and 30 ° C are as follows: Ground roll :590 Feet Total distance to clear a 50-foot obstacle 1370 Feet A correction for the effect of wind may be made based on Note 2 of the landing chart using the same procedure as outlined for takeoff.
  • Page 78 CESSNA SECTION 5 MODEL 172N PERFORMANCE AIRSPEED CALIBRATION NORMAL STATIC SOURCE CONDITION: Power required for level flight or maximum rated RPM dive. FLAPS UP KIAS KCAS FLAPS 10 ° - - - - - - KIAS 60 70 - - -...
  • Page 79 SECTION 5 CESSNA PERFORMANCE MODEL 172N AIRSPEED CALIBRATION ALTERNATE STATIC SOURCE HEATER/VENTS AND WINDOWS CLOSED FLAPS UP NORMAL KIAS ALTERNATE KIAS FLAPS 10 ° - - - - - - - - - NORMAL KIAS - - - - - -...
  • Page 80 SECTION 5 CESSNA PERFORMANCE MODEL 172N TEMPERATURE CONVERSION CHART � -40 � ...._._........�......� ....�..�� DEGREES - CELSIUS Figure 5-2. Temperature Conversion Chart 5-10 1 July 1979...
  • Page 81 CESSNA SECTION 5 MODEL 172N PERFORMANCE STALL SPEEDS CONDITIONS: Power Off NOTES: Maximum altitude loss during a stall recovery may be as much as 180 feet. Kl AS values are approximate. MOST REARWARD CENTER OF GRAVITY ANGLE OF BANK WEIGHT FLAP °...
  • Page 84 SECTION 5 CESSNA PERFORMANCE MODEL 172N MAXIMUM RATE OF CLIMB CONDITIONS: Flaps Up Full Throttle NOTE: RPM. Mixture leaned above 3000 feet for maximum PRESS CLIMB RATE OF CLIMB - FPM WEIGHT SPEED ° ° KIAS 2300 75 5 S.L.
  • Page 85 CESSNA SECTION 5 MODEL 172N PERFORMANCE TIME, FUEL, AND DISTANCE TO CLIMB MAXIMUM RATE OF CLIMB CONDITIONS: Flaps Up Fu II Throttle Standard Temperature NOTES: Add 1.1 gallons of fuel for engine start, taxi and takeoff allowance. Mixture leaned above 3000 feet for maximum RPM.
  • Page 86 CESSNA SECTION 5 MODEL 172N PERFORMANCE CRUISE PERFORMANCE CONDITIONS: 2300 Pounds Recommended Lean Mixture C BELOW C ABOVE ° ° STANDARD TEMPERATURE PRESSURE STANDARD TEMP STANDARD TEMP ALTITUDE KTAS KTAS KTAS 2000 2500 - - - 2400 2300 2200 2100...
  • Page 87 SECTION 5 CESSNA PERFORMANCE MODEL 172N RANGE PROFILE 45 MINUTES RESERVE 40 GALLONS USAB. L E FUEL CONDITIONS: 2300 Pounds Recommended Lean Mixture for Cruise Standard Temperature Zero Wind NOTE: This chart allows for the fuel used for engine start, taxi, takeoff and climb, and the distance during climb.
  • Page 88 SECTION 5 CESSNA PERFORMANCE MODEL 172N RANGE PROFILE 45 MINUTES RESERVE 50 GALLONS USABLE FUEL CONDITIONS: 2300 Pounds Recommended Lean Mixture for Cruise Standard Temperature Zero Wind NOTE: This chart allows for the fuel used for engine start, taxi, takeoff and climb, and the distance during climb.
  • Page 89 CESSNA SECTION 5 MODEL 172N PERFORMANCE ENDURANCE PROFILE 45 MINUTES RESERVE 40 GALLONS USABLE FUEL CONDITIONS: 2300 Pounds Recommended Lean Mixture for Cruise Standard Temperature NOTE: This chart allows for the fuel used for engine start, taxi, takeoff and climb, and the time during climb.
  • Page 90 SECTION 5 CESSNA PERFORMANCE MODEL 172N ENDURANCE PROFILE 45 MINUTES RESERVE 50 GALLONS USABLE FUEL CONDITIONS: 2300 Pounds Recommended Lean Mixture for Cruise Standard Temperature NOTE: This chart allows for the fuel used for engine start, taxi, takeoff and climb, and the time during climb.

  • Page 93: Weight & Balance/ E Q Uipment List

    SECTION 6 CESSNA WEIGHT & BALANCE/ MODEL 172N EQUIPMENT LIST SECTION 6 WEIGHT & BALANCE/ EQUIPMENT LIST TABLE OF CONTENTS Page Introduction ..Airplane Weighing Procedures Veight And Balance Equipment List ..
  • Page 95 Sample forms are provided for reference. Procedures for calculating the weight and moment for various operations are also provided. A comprehensive list of all Cessna equip­ ment available for this airplane is included at the back of this section.
  • Page 96 SECTION 6 CESSNA WEIGHT & BALANCE/ MODEL 172N EQUIPMENT LIST Datum Sta. 0.0 (Firewpll, Front l=ace, Lower Portion) Level at upper door sill or leveling screws on left side of tailcone. L & R Scale Position Scale Reading Tare Net Weight...
  • Page 97 SAMPLE WEIGHT AND BALANCE RECORD t-... 0 t;rj '< (Continuous History of Changes in Structure or Equipment Affecting Weight and Balance) t:I Cl) ,... t;rj Cl) t"4 ► AIRPLANE MODEL SERIAL NUMBER PA GE NUMBER � � 1:1;) WEIGHT CHANGE RUNNING BASIC ITEM NO.
  • Page 98 MODEL 172N EQUIPMENT LIST WEIGHT AND BALANCE The following information will enable you to operate your Cessna within the prescribed weight and center of gravity limitations. To figure weight and balance, use the Sample Problem, Loading Graph, and Center of Gravity Moment Envelope as follows:...
  • Page 99 SECTION 6 CESSNA WEIGHT BALANCE/ MODEL 172N & EQUIPMENT LIST LOADING ARRANGEMENTS *Pilot or passenger center of gravity on adjustable seats positioned for average occupant. Numbers in parentheses indicate forward and aft limits of occupant center of gravity range. ••Arm measured to the center of the areas shown.
  • Page 100 SECTION 6 CESSNA MODEL 172N WEIGHT & BALANCE/ EQUIPMENT LIST • CABIN HEIGHT MEASUREMENTS AFT BAGGAGE AREA : - - - - - -= - 1 43" _ j _ _ _ � 10¼" 48" 1:----L- -- - - - - -r:= ◄...
  • Page 105 EQUIPMENT LIST EQUIPMENT LIST The following equipment list is a comprehensive list of all Cessna equipment available for this airplane. A separate equipment list of items installed in your specific airplane is provided in your aircraft file. The following list and the specific list for your airplane have a similar order of listing.
  • Page 117 SECTION7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N SECTION 7 AIRPLANE & SYSTEMS DESCRIPTIONS TABLE OF CONTENTS Page Introduction . . Airframe Flight Controls Trim System Instrument Panel Ground Control 7-10 Wing Flap System 7-10 Landing Gear System 7-11 Baggage Compartment...
  • Page 119 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N TABLE OF CONTENTS (Continued) Page Ammeter ..... . 7-26 Alternator Control Unit And Low-Voltage Warning Light...
  • Page 120 CESSNA SECTION 7 MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS INTRODUCTION This section provides description and operation of the airplane and its systems. Some equipment described herein is optional and may not be installed in the airplane. Refer to Section 9, Supplements, for details of other optional systems and equipment.
  • Page 121 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N ../ . . ,,1· ·-..,, "'' - :: ..· · ··· :: ..
  • Page 122 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N ELEVATOR CONTROL SYSTEM > "• · · . · ·: . : - ::. : ,;:": (::'..:::°: ::· :• ..: . �.- - - ..
  • Page 123 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N Figure 7-2. Instrument Panel (Sheet 1 of 2) 1 July 1979...
  • Page 125 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N The horizontal stabilizer is constructed of a forward and aft spar, ribs and stiffeners, center, left, and right wrap-around skin panels, and formed leading edge skins. The horizontal stabilizer also contains the elevator trim tab actuator.
  • Page 126 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N altimeter are located to the left and right of the gyros, respectively. The remainder of the flight instruments are located around the basic "T". Engine instruments, fuel quantity indicators, an ammeter, and a low­...
  • Page 127 SECTION7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172 N Figure 7-3. Wing Flap System WING FLAP SYSTEM The single-slot type wing flaps (see figure 7-3), are extended or retracted by positioning the wing flap switch lever on the instrument panel to the desired flap deflection position.
  • Page 128 CESSNA SECTION 7 MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS BAGGAGE COMPARTMENT The baggage compartment consists of two areas, one extending from behind the rear passengers' seat to the aft cabin bulkhead, and an addi­ tional area aft of the bulkhead. Access to both baggage areas is gained through a lockable baggage door on the left side of the airplane, or from within the airplane cabin.
  • Page 129 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N the seat frame. Two-piece seat backs are adjusted by cylinder lock release buttons recessed into skirts located below the seat frame at the outboard ends of the seat. To adjust the one-piece seat back, raise the lever, position the seat back to the desired angle, release the lever and check that the back is locked in place.
  • Page 130 CESSNA SECTION 7 MODEL 172N AIRPLANE SYSTEMS DESCRIPTIONS & STANDARD SHOULDER HARNESS NARROW RELEASE STRAP (Pull up when lengthening harness) (PILOT'S SEAT SHOWN) FREE END OF HARNESS (Pull down to tighten) SEAT BELT/SHOULDER HARNESS WITH INERTIA REEL /r: : : . :----- -.., , , , , , , \l ·...
  • Page 131 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N doorpost above the window line and is stowed behind a stowage sheath above the cabin door. To stow the harness, fold it and place it behind the sheath. The rear seat shoulder harnesses are attached adjacent to the lower corners of the rear window.
  • Page 132 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N across the lap by pulling upward on the shoulder harness. Removal is accomplished by releasing the seat belt buckle, which will allow the inertia reel to pull the harness inboard of the seat.
  • Page 133 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N window outward, and hold it there. An opena.ble window is also available for the right door, a.nd functions in the same manner as the left window. If required, either window ma.y be opened at any speed up to 160 KIAS. The cabin top windows (if installed), rear side windows, and rear windows are of the fixed type and cannot be opened.
  • Page 135 SECTION 7 CESSNA & AIRPLANE SYSTEMS DESCRIPTIONS MODEL 172N of this gage are presented in Section 9, Supplements. NEW ENGINE BREAK-IN AND OPERATION The engine underwent a run-in at the factory and is ready for the full range of use. It is, however, suggested that cruising be accomplished at a minimum of 75% power until a total of 50 hours has accumulated or oil consumption has stabilized.

  • Page 136: Airplane & Systems Descriptions

    CESSNA SECTION 7 MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS position. Spring clips will hold the valve open. After draining, use a suitable tool to snap the valve into the extended (closed) position and remove the drain hose. IGNITION-STARTER SYSTEM Engine ignition is provided by an engine-driven dual magneto, and two spark plugs in each cylinder.
  • Page 137 SECTION 7 CESSNA MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS mounted on the bottom of the engine. The carburetor is equipped with an enclosed accelerator pump, an idle cut-off mechanism, and a manual mixture control. Fuel is delivered to the carburetor by gravity flow from the fuel system.
  • Page 138 SECTION 7 CESSNA MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS FUEL QUANTITY DATA (U.S. GALLONS) TOTAL TOTAL TOTAL USABLE FUEL UNUSABLE FUEL TANKS ALL FLIGHT VOLUME FUEL CONDITIONS STANDARD '. 4 01 (21.5 Gal. Each) LONG RANGE (27 Gal. Each) Figure 7-5. Fuel Quantity Dat a fuel from the fuel strainer and in j ects it into the cylinder intake ports.
  • Page 139 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N FUEL QUANTITY INDICATORS FUEL FUEL QUANTITY QUANTITY TRANSMITTER TRANSMITTER FILLER CAP SELECTOR VALVE VENT (WITH ,_...,..,...,...__..,_..-��.., CHECK VALVE) VALVE SELECTOR VALVE DRAIN PLUG • FUEL STRAINER FUEL STRAINER DRAIN CONTROL CONDITION:...
  • Page 140 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N all of the fuel in one tank, and, after switching to the opposite tank, expect an equal duration from the remain­ ing fuel. The airspace in both fuel tanks is interconnected...
  • Page 141 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N ALTEANATOA LOW-VOLTAGE CONTAOL UNIT WAANING LIGHT ► ---« TO INST LO VOLT OUT CIACUIT BREAKER ALTERNATOR ►--------- ..- - ..POWER IN --------1.• 1 · 1 ll))t----­ SfNSf FIEL0 ..
  • Page 142 CESSNA SECTION? MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS alternator and a 24-volt battery (a heavy duty battery is available), located on the left forward side of the firewall. Power is supplied to most general electrical and all avionics circuits through the primary bus bar and the avionics bus bar, which are interconnected by an avionics power switch.
  • Page 144 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N The warning light may be tested by turning on the landing lights and momentarily turning off the ALT portion of the master switch while leaving the BAT portion turned on. CIRCUIT BREAKERS AND FUSES Most of the electrical circuits in the airplane are protected by "push-to­...
  • Page 145 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N overcast; the flashing light reflected from water droplets or particles in the atmosphere, particularly at night, can produce vertigo and loss of orienta­ tion. INTERIOR LIGHTING Instrument panel and switch and control panel lighting is provided by flood lighting, integral lighting, and post lighting (if installed).
  • Page 146 CESSNA SECTION 7 MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS cabin just forward of the pilot and is helpful when checking maps and othe1 flight data during night operations. To operate the light, first turn on the NAV LT switch; then adjust the map light's intensity with the knurled disk type rheostat control located at the bottom of the control wheel.
  • Page 147 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N �----­ � fr - ----' EXHAUST--­ MUF FLER S HROUD FRONT CABIN AIR OUTLET �--HEATER VALVE ADJUSTABLE DEFRO,TER -------.. VENT! LA TING OUTLET (2) AIR DOOR -----CABIN AIR CABIN HEAT---u._ 1...
  • Page 148 CESSNA SECTION 7 MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS upper corner of the windshield supplies air for the pilot and copilot, and two ventilators are available for the rear cabin area to supply air to the rear seat passengers. The airplane may also be equipped with an air condition­...
  • Page 149 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N indicator, first rotate the ring until pressure altitude is aligned with outside air temperature in degrees Fahrenheit. Pressure altitude should not be confused with indicated altitude. To obtain pressure altitude, momentarily set the barometric scale on the altimeter to 29.92 a.nd read pressure altitude on the altimeter.
  • Page 150 SECTION 7 CESSNA MODEL 172N AIRPLANE & SYSTEMS DESCRIPTIONS � OVERBOARD VENT LINE VACUUM PUMP VACUUM SYSTEM AIR FILTER t O O t _/ 0 0 0 I O O t VACUUM RELIEF VALVE 0 0 0 t ATTITUDE INDICATOR i �...
  • Page 153 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N USED WITH ONE OR TWO TRANSMITTERS COM BOTH---. HEADSET SI DETONE SPEAKER SIDETONE AUDIO SELECTOR INTERNAL ADJUSTMENT INTERNAL ADJUSTMENT SWITCH ACCESS ACCESS , _ ___,.,_ ___ SPEAKER--1• - ---. I XMTR ANN LTS .
  • Page 154 CESSNA SECTION 7 & AIRPLANE SYSTEMS DESCRIPTIONS MODEL 172N transmitters are installed is separate control of NA V and COM audio from the NA V / COM radios. With this installation, the audio selector switches labeled NAV, 1 and 2 select audio from the navigation receivers of the NAV /COM radios only.
  • Page 155 (except the ARC light in the NAV indicators) which are controlled by the switch to the full bright level to verify lamp opera­ tion. SIDETONE OPERATION Cessna radios are equipped with sidetone capability (monitoring of the operator's own voice transmission). While adjusting sidetone, be 7-38 1 July 1979...
  • Page 156 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N aware that if the sidetone volume level is set too high, audio feedback (squeal) may result when transmitting. When the airplane has one or two transmitters, sidetone is provided in both the speaker and headset anytime the COM AUTO selector switch is utilized.
  • Page 157 SECTION 7 CESSNA AIRPLANE & SYSTEMS DESCRIPTIONS MODEL 172N NOTE When transmitting, the pilot should key the microphone, place tho microphone as close as possible to the lips and speak directly into it. STATIC DISCHARGERS If frequent IFR flights are planned, installation of wick-type static...

  • Page 159: Airplane Handling , Service & Maintenance

    Publications ..Airplane File ..8 -5 Airplane Inspection Periods 8- 5 FAA Required Inspections Cessna Progressive Care . Cessna Customer Care Program 8- 7 Pilot Conducted Preventive Maintenance 8 -7 Alterations Or Repairs 8 -7...
  • Page 161 INTRODUCTION This section contains factory-recommended procedures for proper ground handling and routine care and servicing of your Cessna. It also identifies certain inspection and maintenance requirements which must be followed if your airplane is to retain that new-plane performance and dependability.
  • Page 162 • POWER COMPUTER • CUSTOMER CARE DEALER DIRECTORY The following additional publications, plus many other supplies that are applicable to your airplane, are available from your Cessna Dealer. • INFORMATION MANUAL (Contains Pilot's Operating Handbook Information) • SERVICE MANUALS AND PARTS CATALOGS FOR YOUR:...
  • Page 163 States should check with their own aviation officials to determine their individual requirements. Cessna recommends that these items, plus the Pilot's Checklists, Power Computer, Customer C a.re Program book and Customer Care Card, be carried in the airplane at all times.
  • Page 164 The complete familiarity of Cessna Dealers with Cessna equipment and factory-approved procedures pro­ vides the highest level of serv!ce possible at lower cost to Cessna owners. Regardless of the inspection method selected by the owner, he should...
  • Page 166 SECTION 8 CESSNA HANDLING, SERVICE MODEL 172N & MAINTENANCE resulting contact with low hangar doors or structure. A flat nose tire or deflated strut · will also increase tail height. PARKING When parking the airplane, head into the wind and set the parking brakes.
  • Page 167 CESSNA SECTION 8 MODEL 172N HANDLING, SERVICE & MAINTENANCE down the tail by placing sand-bags, or suitable weights, on ea.ch side of the horizontal stabilizer, next to the fuselage. If ground anchors are available, the tail should be securely tied down.
  • Page 168 Since Cessna. Dealers conduct all service, inspection, and test proce­ dures in accordance with applicable Service Manuals, it is recommended that you contact your Cessna Dealer concerning these requirements a.nd begin scheduling your airplane for service at the recommended intervals.
  • Page 169 SECTIONS CESSNA HANDLING, SERVICE MODEL 172N & MAINTENANCE ° ° ° ° SAE 40 between 30 F (-1 C) and 90 F (32 ° ° ° ° C) a.nd 70 F (21 SAE 30 between 0 F (-18 ° °...
  • Page 170 SECTION 8 CESSNA HANDLING, SERVICE MODEL 172N & MAINTENANCE FUEL APPROVED FUEL GRADES (AND COLORS) -- 100LL Grade Aviation Fuel (Blue). 100 (Formerly 100/ 130) Grade Aviation Fuel (Green). NOTE Isopropyl alcohol or ethylene glycol monomethyl ether may be added to the fuel supply in quantities not to exceed 1% or .15% by volume, respectively, of the total.
  • Page 171 CESSNA SECTION 8 MODEL 172N HANDLING, SERVICE & MAINTENANCE Therefore, to alleviate the possibility of fuel icing occurring under these unusual conditions, it is permissible to add isopropyl alcohol or ethylene glycol monomethyl ether (EGME) compound to the fuel supply.
  • Page 172 CESSNA SECTION 8 MODEL 172N HANDLING, SERVICE & MAINTENANCE � 100 "" w 12 � 3.0 > "'!vo 0� a 2.5 � 80 � � � 2.0 � 60 � a 1.5 E GM E GALLONS OF GASOLINE Figure 8-1. Additive Mixing Ratio...
  • Page 173 PAINTED SURFACES The painted exterior surfaces of your new Cessna have a durable, long lasting finish and, under normal conditions, require no polishing or buffing. Approximately 10 days are required for the paint to cure com­...
  • Page 174 SECTION 8 CESSNA HANDLING, SERVICE MODEL 172N & MAINTENANCE desired, the airplane may be waxed with a good automotive wax. A heavier coating of wax on the leading edges of the wings and tail and on the engine nose cap and propeller spinner will help reduce the abrasion encountered in these areas.
  • Page 175 CESSNA SECTION 8 MODEL 172N HANDLING, SERVICE & MAINTENANCE seconds. Continue blotting until no more liquid is taken up. Scrape off sticky materials with a dull knife, then spot-clean the area. Oily spots may be cleaned with household spot removers, used sparingly.
  • Page 179 PILOT'S OPERATING HANDBOOK DIGITAL CLOCK SUPPLEMENT MODEL 172N SUPPLEMENT DIGITAL CLOCK SECTION 1 GENERAL The Astro Tech LC-2 Quartz Chronometer (see figure 1) is a precision, solid state time keeping device which will display to the pilot the time-of­ day, the calendar date, and the elapsed time interval between a series of selected events, such as in-flight check points or legs of a cross-country flight, etc.
  • Page 180 DIGITAL CLOCK PILOT'S OPERATING HANDBOOK MODEL 172N . SUPPLEMENT Test Mode Display ---Activity Indicator (Colon) Clock Mode Indicator (12 Hour Format Only) Button Button Figure 1. Digital Clock SECTION 4 NORMAL PROCEDURES CLOCK AND DATE OPERATION When operating in the clock mode (see figure 2), the display shows the time of day in hours and minutes while the activity indicator ( colon) will blink off for one second each ten seconds to indicate proper functioning.
  • Page 181 PILOT'S OPERATING HANDBOOK DIGITAL CLOCK MODEL 172N SUPPLEMENT Seconds Minutes Digits Digits (Until (Until 59 min. 59 min. sec. 59 sec. then min. then digits) hours digits) Timer DT/AV OT/AV Mode MODE MODE Indicator ST/SP ST/SP LH Button: Resets timer to LH Button: Sets date and time of day (when used "zero".
  • Page 182 DIGITAL CLOCK PILOT'S OPERATING HANDBOOK MODEL 172N SUPPLEMENT Once set correctly, the date advances automatically at midnight each day until February 29 of each leap year, at which time one day must be added manually. Pressing the LH button two additional times will cause the time to appear with the hours digits flashing.
  • Page 183 PILOT'S OPERATING HANDBOOK GROUND SERVICE PLUG SUPPLEMENT RECEPTACLE MODEL 172N SUPPLEMENT GROUND SERVICE PLUG RECEPTACLE SECTION 1 GENERAL The ground service plug receptacle permits the use of a.n external power source for cold weather starting and lengthy maintenance work on the electrical a.nd electronic equipment.
  • Page 184 GROUND SERVICE PLUG PILOT'S OPERATING HANDBOOK RECEPTACLE SUPPLEMENT MODEL 172N SECTION 2 LIMITATIONS The following information must be presented in the form of a placard located on the inside of the ground service plug access door: CAUTION 24 VOLTS D.C. This aircraft is equipped with alternator and a negative ground system.
  • Page 186 STROBE LIGHT SYSTEM PILOT'S OPERATING HANDBOOK MODEL 172N SUPPLEMENT SECTION 5 PERFORMANCE The installation of strobe lights will result in a minor reduction in cruise performance. 1 July 1979...
  • Page 187 EMERGENCY LOCATOR PILOT'S OPERA TING HANDBOOK TRANSMITTER (ELT) SUPPLEMENT SUPPLEMENT EMERGENCY LOCATOR TRANSMITTER (ELT) SECTION 1 GENERAL The ELT consists of a self-contained dual-frequency radio transmitter and battery power supply, and is activated by an impact of 5g or more as may be experienced in a crash landing.
  • Page 188 EMERGENCY LOCATOR PILOT'S OPERATING HANDBOOK TRANSMITTER (ELT) SUPPLEMENT FUNCTION SELECTOR SWITCH (3-position toggle switch): - Activates transmitter instantly. Used for test purposes and if"g" switch is inoperative. - Deactivates transmitter. Used during shipping, storage and following rescue. AUTO - Activates transmitter only when "g" switch receives 5g or more impact. COVER - Removable for access to battery pack.
  • Page 189 PILOT'S OPERATING HANDBOOK EMERGENCY LOCATOR SUPPLEMENT TRANSMITTER (ELT) PRIOR TO SIGHTING RESCUE AIRCRAFT -- Conserve airplane battery. Do not activate radio transceiver. AFTER SIGHTING RESCUE AIRCRAFT -- Place ELT function selector switch in the OFF position, preventing radio interference. Attempt contact with rescue aircraft with the radio transceiver set to a frequency of 121.5 MHz.

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