What was found
15 PSI SPLIT IN DUCT PRESS LT 20 PSI RT 35 PSI ISLN VALVES BOTH CLOSED. LOCKED OUT HPSOV IN CLOSED POSITION & DEFERRED IAW MEL. AIR SUPPLY BITE MODULE FAULTED "LT HPC". PARTS 643-9027 MR36157 CONTROLLER, 641-9276 MR36213 VALVE.
- Difficulty date
- September 10, 2013
- Submitted
- September 11, 2013
- Operation
- Air carrier
- Aircraft
- N672UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30027
- Aircraft time
- 49,699 hours, 12,459 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Controller
- Condition
- Malfunctioned
- 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.