What was found
LEFT PNUEMATIC ISOLATION VALVE SWITCH LEGEND WILL NOT SHOW "AUTO" WHEN DEPRESSED. REPLACED LEFT PNUEMATIC ISOLATION VALVE SWITCH & BASE ASSY, OPS TEST OK.
- Difficulty date
- October 30, 2011
- Submitted
- November 30, 2011
- Operation
- Air carrier
- Aircraft
- N229UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30557
- Aircraft time
- 40,875 hours, 5,007 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Switch
- Condition
- Faulty
- Location
- Bleed Air Sys
- Stage of operation
- NR
- 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.