Service difficulty report · Pump · Bombdr DHC8402

Difficulty date
November 17, 2015
Submitted
November 23, 2015
Operation
Air carrier
Aircraft
N442QX
Make and model
Bombdr DHC8402
Aircraft serial
4352
Aircraft time
11,529 hours, 12,183 cycles
Part
Pump
Part number
6617304
Part serial
K0110
Condition
Failed
Location
Hyd System
Part time
31,036 hours, 33,157 cycles
Stage of operation
CR
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

DURING LAST PART OF CRUISE FLIGHT, NR 2 HYD PUMP CAUTION ILLUMINATED. ASSOCIATED CHECKLISTS COMPLETE. THEN ON APPROACH NR 2 SYSTEM HYD QTY FELL FROM 1/3 TO ZERO. IT HAD BEEN STAYING STEADY APPROACH DISCONTINUED WITH ADDITIONAL CAUTION LIGHTS NR 2 HYD PRESS, NR 2 RUD HYD, AND PTU FAIL ALSO SHOWS THE ROLL SOILER OTBD, AND OTBD SPOILER CAUTION ILLUMINATED WHEN BELOW 165KTS. MANUAL GEAR EXTENSION REQUIRED. DIVERTED AND ACCOMPLISHED UNEVENTFUL LANDING. INSP AND FOUND NR 2 EDP ROTATING GROUP FAILED. R & R 2 EDP IAW AMM TASK 29-11-01-000-801, 29-11-01-400-801 AND MCN 5114929232/1. COMPLIED WITH AMM TASK 05-54-00-280-801. COMPLIED WITH SIMPLIFIED FLUSH OF NR 2 HYD SYS IAW TR 29-188, AMM TASK 29-10-00-617-803, PARA C. EDP OPS CHECK GOOD. NO LEAKS NOTED.