Service difficulty report · Selector Valve · Bombdr BD7001A10

Difficulty date
December 1, 2022
Submitted
December 9, 2022
Operation
Air carrier
Aircraft
N163QS
Make and model
Bombdr BD7001A10
Aircraft serial
9557
Aircraft time
3,877 hours, 1,474 cycles
Part
Selector Valve
Part number
29600103
Part serial
7315013
Condition
Defective
Location
Landing Gear
Stage of operation
CL
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

GEAR DISAGREE CAS MESSAGE¿.AFTER RETRACTING THE GEAR WE RECEIVED 5 AMBER CAS MESSAGES AND 1 CYAN CAS MESSAGE. AMBER GEAR SYS FAIL, L MAIN GEAR DOOR, GEAR DISAGREE, R MAIN GEAR DOOR, NOSE DOOR FOLLOWED BY CYAN BRAKE FAULT CAS MESSAGE. ON THE SYNOPTIC PAGE WE HAD 2 MAIN GEAR DOWN, NOSE GEAR RETRACTED ALL GEAR DOORS OPEN. COMPLIED WITH CHECKLIST AND LANDED WITH NORMAL INDICATIONS. REMOVED #2 GEAR SELECTOR VALVE . INSTALLED NEW GEAR SELECTOR VALVE IAW GL6000 MM 32-31-13 OPERATIONAL TEST REQUIRED PERFORMED OPERATIONAL CHECK IAW GL6000 MM 32-30-00-710-801 OPS CHECK GOOD. PERFORMED BLEEDING OF THE #3 AND #2 HYDRAULIC SYSTEMS IAW GL6000 AMM 29-10-00. PERFORMED OPERATIONAL CHECK AND LEAK CHECK OF THE LANDING GEAR EXTENSION /RETRACTION SYSTEM IAW GL6000 AMM 32-30-00. OPERATIONAL TEST AND LEAK CHECK SATISFACTORY NO FURTHER FAILS OR DEFECTS NOTED. DOWNJACKED A/C. REINSTALLED MLG WHEEL BINS AND PLACED ALL CB'S BACK TO ORIGINAL CONFIG. SERVICED ALL HYDRAULICS IAW GL6000 AMM 12-12-00. ORIGINAL SUBMISSION DATE: 12/2/2022