Landing Gear Fails To Extend - Cessna 206 Series Supplemental Manual

ISSUE DATE:
8/23/10
REVISION
TITLE:
DATE
SUBTITLE:
03/04/15
LANDING GEAR MALFUNCTION PROCEDURES

LANDING GEAR FAILS TO EXTEND

1. Master Switch -- ON.
2. Landing Gear Handle -- CHECK (handle full down).
3. Emergency Hand Pump Selector Valve -- CHECK (in off position –
toward pilot seat)
4. Landing Gear Motor Circuit Breaker -- IN.
5. Gear Relay Circuit Breaker -- IN.
6. Gear Advisory Circuit Breaker -- IN.
7. Gear Down Lights -- CHECK bulb operation (press-to-test).
8. Main Gear Visual Indicators -- VISUALLY CHECK (at float
inspection openings).
9. Landing Gear Handle -- RECYCLE.
10. Landing Gear Motor -- CHECK operation (motor indicator light,
ammeter and noise).
11. Cycle the Emergency Hand Pump Selector Valve to DOWN position
and back to OFF (this reduces pressure in the system allowing the
pressure switches to sense low pressure allowing the pump to cycle).
If the landing gear still does not extend and a wheels-down landing is
desired:
12. Landing Gear Motor Circuit Breaker -- PULL.
13. Landing Gear Handle -- DOWN.
14. Emergency Hand Pump Selector Valve -- ROTATE (to DOWN
position – counterclockwise 90 deg.).
15. Emergency Hand Pump -- PUMP (up and down until gear is in DOWN
position - approximately 230 strokes -- there should be significant
force on the pump handle with the final stroke).
16. Gear Down Lights -- CHECK ILLUMINATED.
17. Main & Nose Gear Visuals -- VISUALLY CHECK (with mirrors &
note that the up indicators on the mains are not visible at the float
inspection openings).
FAA Approved
INCORPORATED
Supplemental Airplane Flight Manual
Cessna 206 on Model 3400 Floats
PO Box 2119
265 Shannon Lane
Priest River ID 83856
Page
12 of 38
FILE NO.
A-10060
REVISION: D