What was found
PACK LOW LIMIT VALVE PNEUMATIC CHECK, FAILED TEST ON STEP 1 B 4, LOW LIMIT VALVE DID NOT OPEN AFTER 5 MINUTES. REMOVED AND REPLACED RT LOW LIMIT VALVE AND OPS CHECK GOOD IAW AMM 21-51-11 AND AMM 21-51-11-702.
- Difficulty date
- September 22, 2017
- Submitted
- September 25, 2017
- Operation
- Air carrier
- Aircraft
- N767MW
- Make and model
- Boeing 767277
- Aircraft serial
- 22694
- Aircraft time
- 54,654 hours, 37,886 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Valve
- Part number
- 32896961
- Part serial
- P466
- Condition
- No Test
- Location
- A/C Pack
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.