What was found
CABIN ALTITUDE STARTED RISING AT 1000 FAM AT FL 430 IN CRUISE. TRIED TO STABILIZE CABIN ALTITUDE MANUALLY USING CHERRY-PICKER BUT TO NO AVAIL. FORCED TO PERFORM EMER DESCENT AND DECLARE EMERGENCY.
- Difficulty date
- October 1, 2020
- Submitted
- October 3, 2020
- Operation
- Air carrier
- Aircraft
- N131AJ
- Make and model
- Lear 35A
- Aircraft serial
- 381
- Aircraft time
- 20,536 hours, 13,144 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
- B, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.