Service difficulty report · Pcu · Bombdr DHC8402

Difficulty date
June 4, 2012
Submitted
June 8, 2012
Operation
Air carrier
Aircraft
N431QX
Make and model
Bombdr DHC8402
Aircraft serial
4164
Aircraft time
12,204 hours, 13,205 cycles
Part
Pcu
Part number
697073002
Part serial
DAP0031
Condition
Malfunctioned
Location
Nr 2
Part time
6,347 hours, 6,854 cycles
Stage of operation
TX
How discovered
M
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

DURING ROLLOUT AND TAXI-IN ACFT SEEMED TO BE PRODUCING THRUST WITH POWER LEVERS AT FULL DISC POSITION. CONSTANT BRAKING WAS NEEDED TO CONTROL SPEED. AFTER SHUTDOWN NR 2 PEC CAUTION & POWERPLANT MESSAGE. REPLACED NR 2 PCU & JUNCTION BOX DB3-K2 DAUGHTER BOARD 3 IAW TASKS 61-20-11-000-801 & 61-20-11-400-801 & 20-30-16-960-801 & 24-50-60-400-801 OF AMM. ALL OPS CHECKS GOOD. LEAK CHECK GOOD. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.