What was found
AT FL 370 CABIN ALTITUDE BEGAN A SLOW CLIMB, WITH OUTFLOW VALVE FULLY CLOSED. DESCENDING TO FL 300 AND CABIN ALT STABILIZED AT 9000FT. PERFORMED A BITE CHECK OR THE PRESSURE CONTROLLERS IAW AMM 21-31-00. OPS CHECKED GOOD.
- Difficulty date
- March 11, 2018
- Submitted
- March 15, 2018
- Operation
- Air carrier
- Aircraft
- N1321A
- Make and model
- Boeing 767306
- Aircraft serial
- 27957
- Aircraft time
- 81,918 hours, 18,974 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Cabin Pressure
- Condition
- Malfunctioned
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.