Service difficulty report · Uplock Roller · Bombdr DHC8402

Difficulty date
December 7, 2009
Submitted
December 12, 2009
Operation
Air carrier
Aircraft
N414QX
Make and model
Bombdr DHC8402
Aircraft serial
4061
Aircraft time
20,571 hours, 21,098 cycles
Part
Uplock Roller
Part number
465751
Condition
Malfunctioned
Location
Rt Mlg
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

AFTER T/O AND GEAR UP, RT MX AND GEAR DOOR UNSAFE LIGHTS REMAINED ILLUMINATED APPROX 1 MINUTE AFTER OTHER GEAR WERE UP AND LIGHTS WERE OUT. RIGHT LIGHTS WENT OUT AT ABOUT 160 KTS. PERFORMED CK OF PSEU, FOUND FAULT HISTORY MSGS OF DIN01B FAILED, DIN01D FAILED, RGUPLK FAULT UNREASONABLY FAR, RGDRCL FAULT UNREASONABLY FAR. FERRY. JACKED ACFT AND PERFORMED GEAR SWINGS AT LOW FLOW SETTINGS, FOUND RT GEAR STALLS BEFORE ENGAGEMENT OF UPLOCK. ADJUSTED RT RETRACTION ACTUATOR IAW 32-31-11-830-801. ADJUSTED GEAR UPLOCK SENSOR IAW 32-61-00-280-801. REMOVED AND REPLACED RT UPLOCK ROLLER ON RT GEAR. PERFORMED OPS CHECK OF GEAR EXTENSION/RETRACTION IAW 32-31-00-701-801. OPS GOOD. RETURNED TO SERVICE.