What was found
L-PACK ILLUMINATED DURING DESCENT RECALL. GROUNDED - YES. PACK/ZONE TEMP CONTROLLER BITE SHOWS HISTORY OF RAM AIR DOOR ACTUATOR FAULTS. DUE TO HISTORY, REMOVED AND REPLACED LT RAM AIR DOOR ACTUATOR REF B737-800 AMM 21-51-21.
- Difficulty date
- December 29, 2019
- Submitted
- December 31, 2019
- Operation
- Air carrier
- Aircraft
- N581AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35188
- Aircraft time
- 47,917 hours, 14,339 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Actuator
- Part number
- 5416744
- Part serial
- 11251
- Condition
- Failed
- Location
- Ram Air Exhaust
- Part time
- 50,827 hours, 15,261 cycles
- Stage of operation
- DE
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.