What was found
AT FL 400, THE CAPTAIN NOTICED AN INCREASE IN CABIN CLIMB RATE AND DECREASE IN CABIN PRESSURE. CREW DONNED OXYGEN MASKS AND MADE A DESCENT TO FL100. FLIGHT CONTINUED UNEVENTFUL, PRESSURIZATION WAS CONTROLLABLE AT THIS POINT.
- Difficulty date
- May 23, 2018
- Submitted
- May 29, 2018
- Operation
- Air carrier
- Aircraft
- N805JL
- Make and model
- Braero BAE125800A
- Aircraft serial
- 258203
- Aircraft time
- 8,639 hours, 5,257 cycles
- System (JASC)
- 2131 · Cabin Pressure Controller
- Part
- Controller
- Part number
- 1305304
- Part serial
- 24129
- Condition
- Malfunctioned
- Location
- Cabin Pressure
- Part time
- 7,485 hours, 4,000 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- B
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.