What was found
AUTO 1 AND AUTO 2 COULD NOT MAINTAIN NORMAL CABIN ALT. OUTFLOW VALVE FULL CLOSE REPLACED AIR SPLY CK VLV PRECAUTIONARY; BROKEN CLAMP AROUND THE AIR SPLY CK VLV REF AMM 21-51-15.
- Difficulty date
- November 11, 2016
- Submitted
- November 12, 2016
- Operation
- Air carrier
- Aircraft
- N518UA
- Make and model
- Boeing 757222
- Aircraft serial
- 24871
- Aircraft time
- 89,390 hours, 25,863 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Clamp
- Condition
- Broken
- Location
- Air Supply
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- B, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.