Service difficulty report · Power Unit · Bombdr DHC8402

Difficulty date
September 17, 2016
Submitted
September 21, 2016
Operation
Air carrier
Aircraft
N404QX
Make and model
Bombdr DHC8402
Aircraft serial
4046
Aircraft time
37,049 hours, 38,765 cycles
Part
Power Unit
Part number
C1486742005
Part serial
1239
Condition
Malfunctioned
Location
Te Flaps
Part time
15,908 hours, 17,111 cycles
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

FLAP POWER CAUTION ILLUMINATED ON APPROACH. AFTER PERFORMING ALL CHECKLISTS DID A 0 FLAP LANDING (FLAPS NEVER MOVED OUT OF 0 WHEN FLAPS 5 SELECTED). TOUCHDOWN AT 156KIAS. SELECTED FLAPS UP AFTER LANDING, AND LIGHT EXTINGUISHED. LANDING UNEVENTFUL. PERFORMED OPERATIONAL TEST OF FLAP SYSTEM. REPLACED FLAP CONTROL UNIT. PERFORMEDFUNCTIONAL TEST OF FLAP CONTROL SYSTEM. OPRATIONAL AND FUNCTIONAL TESTS ARE GOOD. TEST FLIGHT PASSED. RETURNED TO SERVICE.