What was found
LEFT PACK DURING PACK OFF ENG START DID NOT SHOW OFF ON SWITCH OR EICAS. ATTEMPTED SEVERAL RESETS AND C/B CYCLING, NO HELP. MEL REQUIRES EICAS TO DISPLAY. REPLACED LT FLOW CONTROL VALVE IAW MM, OPS CKS OK.
- Difficulty date
- January 31, 2011
- Submitted
- January 31, 2011
- Operation
- Air carrier
- Aircraft
- N653UA
- Make and model
- Boeing 767322
- Aircraft serial
- 25391
- Aircraft time
- 79,102 hours, 12,792 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 3964622
- Part serial
- 22
- Condition
- Faulty
- Location
- Lt A/C Pack
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.