What was found
USED ALT GEAR TO EXTEND ON LANDING AFTER NO NOSE GEAR GREEN LIGHT. AS PER FAULT ISOLATION PROCEDURE 32-30-00 FIG 104, FOUND THE DOOR OPERATED SEQUENCE VALVE AT FAULT. REPLACED NOSE GEAR DOOR OPERATED SEQUENCE VALVE.
- Difficulty date
- September 2, 2011
- Submitted
- September 29, 2011
- Operation
- Air carrier
- Aircraft
- N508UA
- Make and model
- Boeing 757222
- Aircraft serial
- 24744
- Aircraft time
- 73,047 hours, 22,624 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3231 · Landing Gear Door Retract Section
- Part
- Sequence Valve
- Part number
- 60B002477
- Part serial
- 2768
- Condition
- Faulty
- Location
- Nlg
- Stage of operation
- LD
- 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.