Service difficulty report · Sequence Valve · Bombdr DHC8400

Difficulty date
December 21, 2015
Submitted
April 22, 2016
Operation
General aviation
Make and model
Bombdr DHC8400
Aircraft time
6,535 hours
Engine
Pwc PW150A
Propeller
Dowty R4086123F17
Part
Sequence Valve
Part number
483025
Condition
Slow
Location
Mlg
Part time
6,213 hours
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) WHEN LANDING GEAR SELECTED DOWN, GEAR SHOWED RED IN TRANSIT LIGHT FOR APPROX. 45 SEC. NOSE GEAR SHOWED DOWN/LOCKED AFTER 60 SEC WITH NO CREW ACTION. MAINTENANCE TESTED THE LANDING GEAR OPERATION AND THE FAULT WAS CONFIRMED (INTERMITTENT). NLG SOLENOID SEQUENCE VALVE WAS REPLACED AND THE LANDING GEAR OPERATION WAS TESTED SERVICEABLE. THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE.