What was found
CENTER ISOLATION VALVE FAILS CHECK, WON'T SHUTOFF AND FALL BELOW 11 PSI. REPLACED CENTER ISO VALVE LEAK AND OPS CKD GOOD.
- Difficulty date
- May 12, 2011
- Submitted
- June 3, 2011
- Operation
- Air carrier
- Aircraft
- N778UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26940
- Aircraft time
- 60,743 hours, 10,891 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Isolation Valve
- Part number
- 32907706
- Part serial
- 913
- Condition
- Faulty
- Location
- Bleed Air Sys
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.