Service difficulty report · Sequence Valve · Bombdr DHC8402

Difficulty date
December 4, 2020
Submitted
December 7, 2020
Operation
Air carrier
Aircraft
N434MK
Make and model
Bombdr DHC8402
Aircraft serial
4227
Aircraft time
27,218 hours, 29,581 cycles
Part
Sequence Valve
Part number
483025
Part serial
FAH0865
Condition
Inoperative
Location
Nlg
Part time
27,207 hours, 29,576 cycles
Stage of operation
CL
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

NOSE GEAR TOOK 35 SECONDS TO RETRACT, GEAR TRANSITION AND UNSAFE LIGHTS EXTINGUISHED AT ACCELERATION HEIGHT. GEAR LOWERED NORMALLY (LANDING GEAR RETRACTION SYSTEM). REMOVED FROM SERVICE. R & R NLG SSV. OPERATIONS CHECK GOOD CLEAR DEFECT 927751. PLACARDS REMOVED. AIRCRAFT RETURNED TO SERVICE.