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Diamond Twin Star DA42
Quick Reference Handbook
Abnormal Procedures
© SFC
OCT 2022

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Summary of Contents for SFC Diamond Twin Star DA42

  • Page 1 Diamond Twin Star DA42 Quick Reference Handbook Abnormal Procedures © SFC OCT 2022...
  • Page 2 DIAMOND TWINSTAR DA42NG QRH THIS PAGE IS INTENTIONALLY LEFT BLANK. © SFC OCT 2022 Page 2 of 29...
  • Page 3 Decision Point – The point during the take-off phase, that the PIC makes the decision to either, abort the take off and land straight ahead utilising any run off area, or continue the take-off, climb and emergency procedure. © SFC OCT 2022 Page 3 of 29...
  • Page 4: Table Of Contents

    AHRS Aligning Failure In Flap Operating System MINSPD Windshear Encounter ESP Disengagement Hydraulic Pump Failure Cont. Hydraulic Pump Operation Failures In Electrical Rudder Pedal Starting Engine with External Power Lightning Strike Autopilot Disconnect © SFC OCT 2022 Page 4 of 29...
  • Page 5: Precautionary Landing

    If sufficient time is remaining, the risk of fire in the event of a collision with obstacles can be reduced as follows after a safe touch-down: - ENGINE MASTER ……………………………………. BOTH OFF - FUEL SELECTOR …...………………………………… BOTH OFF - ELECT. MASTER ….………………………………………..….. OFF © SFC OCT 2022 Page 5 of 29...
  • Page 6: Canopy In Cooling Gap Position

    - If the coolant temperature does not reach the green range within 60 seconds, reduce power on affected engine as far as possible and increase airspeed. During cruise: - Reduce power on affected engine. - Increase airspeed. - Check coolant temperature in green range. © SFC OCT 2022 Page 6 of 29...
  • Page 7: Low Coolant Temperature

    A further increase in oil temperature must be expected. Prepare for an engine failure. If the oil pressure is within the green range: - Reduce power on affected engine. - Increase airspeed. © SFC OCT 2022 Page 7 of 29...
  • Page 8: Low Oil Temperature

    Oil pressures below the lmit value of 0.9 bar can lead to a total loss of power due to engine failure. - Reduce power on affected engine. - Expect loss of oil. Warning Land at the nearest suitable airfield. Prepare for an engine failure. © SFC OCT 2022 Page 8 of 29...
  • Page 9: High Gear Box Temperature

    Increased fuel temperature can occur when the fuel quantity in the main tank is low. If the auxiliary tank is installed the fuel temperature can be decreased by transferring fuel from the auxiliary to the main tank. © SFC OCT 2022 Page 9 of 29...
  • Page 10: Low Fuel Temperature

    1. Alternators ……………………………………………………………………………………………………….. CHECK ON 2. Circuit Breakers ……………………………………………….……………………………………………………….CHECK 2. Electrical Equipment ………………….……………………………………………………….. OFF IF NOT NEEDED If LOW VOLTAGE CAUTION is still indicated on the G1000: - Follow procedure in L/R ALTN FAIL. © SFC OCT 2022 Page 10 of 29...
  • Page 11: L/R Fuel Low

    Continue with LOW VOLTAGE INDICATION ON THE GROUND or LOW VOLTAGE INDICATION IN FLIGHT checklist. CAUTION If both low voltage indications are ON, expect failure of both alternators and follow one alternator failed or both alternators failed checklist. © SFC OCT 2022 Page 11 of 29...
  • Page 12: L/R Altn Fail

    * Left/Right auxiliary fuel tank empty (displayed only when AUX pump switch is ON). The auxiliary tank empty caution message indicates an empty auxiliary fuel tank while the fuel pump is switched ON. 1. L/R Auxiliary Fuel Pump …………………………………………………………………………..…………………….OFF © SFC OCT 2022 Page 12 of 29...
  • Page 13: Pitot Fail/Ht Off

    Refer to High Coolant Temperature or Low Coolant Temperature NOTE The indication is calibrated for straight and level flight. The caution message may be triggered during turns which are flown with slip, or while taxiing in curves. © SFC OCT 2022 Page 13 of 29...
  • Page 14: Stick Limit

    The CHECK GEAR caution message is displayed when either the flaps are in LDG position or one power lever is less than approx. 20% and the landing gear is not down and locked. © SFC OCT 2022 Page 14 of 29...
  • Page 15: Loi

    If the LOI annunciation is displayed while on the final approach segment, GPS based navigation will be aborted. AHRS ALIGNING – KEEP WINGS LEVEL *The AHRS (Attitude and Heading Reference System) is aligning. Keep wings level using standby attitude indicator. © SFC OCT 2022 Page 15 of 29...
  • Page 16: Failure In Flap Operating System

    Autopilot underspeed protection mode provides a pitch down command to maintain 90 +/- 20 KIAS or VSW + 2 KIAS, depending on the vertical mode selected. Underspeed protection is not available below 200 feet AGL, except in go-around mode © SFC OCT 2022 Page 16 of 29...
  • Page 17: Windshear Encounter

    - CWS button ………………….………………………….………………………….…………………… PRESS AND HOLD - AUX- SYSTEM SETUP 2 page on MFD ……….………………… DISABLE STABILITY AND PROTECTION If all three methods are NOT successful: - AUTOPILOT circuit breaker …………………………………………………………………………..………………..PULL © SFC OCT 2022 Page 17 of 29...
  • Page 18: Hydraulic Pump Failure

    Runaway away of Electrical Rudder Pedal Adjustment NOTE The circuit breaker for the rudder pedal adjustment is located below the related switch, on the rear wall of the leg room. 1. Circuit Breaker ……………………………………………………,,,…….………………..…………………………. PULL © SFC OCT 2022 Page 18 of 29...
  • Page 19: Starting Engine With External Power

    ENGINE MASTER switch to OFF and investigate problem. 13. Circuit Breakers ..………….………………………….……………………..………….… CHECK ALL IN/ AS REQ. 14. Idle RPM ………….…………………….……….……….…………………….……………… CHECK, 710 +/30 RPM 15. External Power ………….……………………….………….…………………….……………………… DISCONNECT 16. RH Engine ………………………..……………….…………………….… START WITH NORMAL PROCEDURE © SFC OCT 2022 Page 19 of 29...
  • Page 20: Lightning Strike

    The autopilot disconnect may be accompanied by a red boxed PTCH (pitch) or ROL on the PFD, indicating the axis which has failed. The autopilot cannot be re-engaged with either of these annunciations present. © SFC OCT 2022 Page 20 of 29...
  • Page 21: Autopilot Overspeed Recovery

    2. Nav source …………………….………….…………………………………………. SELECT A VALID NAV SOURCE 3. Autopilot ………………………………….………………………………. SELECT NAV ON MODE CONTROLLER If on an instrument approach at the time the navigation signal is lost: 4. Missed approach procedure ………….…………………………………………. EXECUTE (AS APPLICABLE) © SFC OCT 2022 Page 21 of 29...
  • Page 22: Autopilot Out Of Trim

    Following an autopilot, autotrim or manual electric trim system malfunction, do not engage the autopilot or operate the manual electric trim until the cause of the malfunction has been corrected. CONTINUED ONTO THE NEXT PAGE - © SFC OCT 2022 Page 22 of 29...
  • Page 23 →AIL indicates that sustained right wing down control stick force or for →RUD sustained right rudder force will be required upon autopilot disconnect. 3. AP DISC Switch ………………………………..…………………………………..………………………………. DEPRESS 4. Autopilot ……………………………………………….…….……….……………… RE-ENGAGE IF LATERAL TRIM IS RE-ESTABLISHED © SFC OCT 2022 Page 23 of 29...
  • Page 24: Flashing Yellow Mode Annunciation

    Loss of selected lateral mode (HDG, NAV, GPS, LOC, VAPP, BC): 1. Autopilot mode controls ……………………………………………… SELECT ANOTHER LATERAL MODE If on an instrument approach: 2. Autopilot ………………..…………………………………………. DISCONNECT AND CONTINUE MANUALLY OR EXECUTE MISSED APPROACH © SFC OCT 2022 Page 24 of 29...
  • Page 25: L/R Aux Fuel Transfer Fail

    (LOC, BC, VOR, VAPP) with reduced accuracy. The autopilot disconnects and autopilot is inoperative. The flight director is available except for air data modes (ALT, VS, FLC). Manual electric trim is available. © SFC OCT 2022 Page 25 of 29...
  • Page 26: L/R Ecu A Fail

    In this case switch immediately back to AUTO. When carrying out the clearing procedure be prepared for a loss of engine power. - CONTINUED ONTO THE NEXT PAGE - © SFC OCT 2022 Page 26 of 29...
  • Page 27 An ECU FAIL CAUTION is caused by various types of malfunctions. These include internal ECU problems, sensor failures or insufficient performance of air-, fuel-, or electrical supply system (e.g. air filter icing). NOTE If additional engine problems are observed refer to ENGINE TROUBLESHOOTING. © SFC OCT 2022 Page 27 of 29...
  • Page 28: L/R Ecu B Fail

    ECU A. 1. Alternate Air ……………………………………………………….…………..………………………………………… OPEN 2. Fuel Pumps LH/RH ………………………………………………………….…………….………………………………. ON 3. Circuit Breakers …………………………………………………….……….………. CHECK/RESET IF NECESSARY 4. VOTER Switch ……………………………………………………………..……………………………………………. AUTO - CONTINUED ONTO THE NEXT PAGE - © SFC OCT 2022 Page 28 of 29...
  • Page 29 An ECU FAIL CAUTION is caused by various types of malfunctions. These include internal ECU problems, sensor failures or insufficient performance of air-, fuel- or electrical supply system (e.g. air filter icing). - END OF QRH - © SFC OCT 2022 Page 29 of 29...

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