Service difficulty report · Uplock Roller · Bombdr DHC8402

Difficulty date
March 25, 2009
Submitted
March 30, 2009
Operation
Air carrier
Aircraft
N408QX
Make and model
Bombdr DHC8402
Aircraft serial
4050
Aircraft time
19,502 hours, 19,863 cycles
Part
Uplock Roller
Part number
465751
Condition
Malfunctioned
Location
Rt Mlg
Stage of operation
AP
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

GEG - FOLLOWING GEAR DOWN SELECTION THE RIGHT MAIN LANDING GEAR TOOK 12 SECONDS LONGER THAN THE LEFT MAIN AND NOSE GEAR INDICATOR LIGHTS TO GO GREEN. THE RIGHT MAIN RED AND AMBER LIGHTS WERE ILLUMINATED DURING THIS TIME AND TRANSIT LIGHT. NO ALTERNATE EXTENSION WAS PERFORMED. LANDING UNEVENTFUL. FERRIED TO PDX FOR REPAIRS. PERFORMED GVI OF RT MLG, NO VISUAL DEFECT NOTED. REPLACED RT MLG UPLOCK ROLLER IAW Q400 AMM TASK'S 32-31-21-000-802 & 32-31-21-400-802, PERFORMED FUNCTIONAL TEST OF PRIMARY EXTENSION & RETRACTION SYS IAW TASK 32-31-00-720-801 AND PERFORMED GEAR RETRACTION & EXTENSION TIMING TEST, GEAR RETRACTION AND ALL LIGHTS OFF IN 5 SEC, GEAR EXTENDED DN/LOCKED IN 6 SEC. FUNCTIONAL TEST GOOD, NO DEFECT NOTED. BLEED NR 2 HYD SYS IAW TASK 29-10-00-870-067. RETURNED TO SERVICE.