What was found
RTFL WITH GEAR DISAGREE MESSAGE. REPLACED NLG SAFETY VALVE & GEAR OPERATED DOOR SEQUENCE VALVE.
- Difficulty date
- May 13, 2008
- Submitted
- May 14, 2008
- Operation
- Air carrier
- Aircraft
- N187UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26877
- Aircraft time
- 62,718 hours, 7,473 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3230 · Landing Gear Retraction/Extension System
- Part
- Sequence Valve
- Condition
- Malfunctioned
- Location
- Mlg
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J, E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.