Service difficulty report · Pump · Bombdr BD1001A10

Difficulty date
October 21, 2025
Submitted
October 24, 2025
Operation
Air carrier
Aircraft
N739QS
Make and model
Bombdr BD1001A10
Aircraft serial
20690
Aircraft time
8,749 hours, 5,055 cycles
Part
Pump
Part number
5116006
Part serial
K0051
Condition
Defective
Location
Zone 100
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

RIGHT HYD RESERVOIR DUMPED ALL FLUID TO 0% AT FL430. CYAN FLAPS RATE LOW AND R HYD ENG PUMP FAIL ILLUMINATED. AMBER R HYD LOW AND SPILER FAULT ILLUMINATED WHEN FLAPS EXTENDED VIA ALTN FLAPS. POST FLIGHT SHOWED HYD FLUID DRIPPING FROM BOTH R ENGINE LOWER WEEP HOLES CORRECTION ACTION: REPLACED HYDRAULIC PUMP. IAW CL-350 AMM 05-51-29 AND AMM 29-12-01 OPS CHECK GOOD.