What was found
L/H RAM DOOR ACTUATOR FAULT DURING TEMP/ZONE CONROLLER BITE TEST. WILL NOT RESET. GROUNDED - YES. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR REF. B737-900 AMM 21-51-21. OPS AND BITES TEST GOOD.
- Difficulty date
- December 30, 2019
- Submitted
- January 3, 2020
- Operation
- Air carrier
- Aircraft
- N409AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41733
- Aircraft time
- 27,716 hours, 8,977 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Actuator
- Part number
- 5416744
- Part serial
- 16307
- Condition
- Inoperative
- Location
- Lt Ram Air Inlet
- Part time
- 27,732 hours, 8,983 cycles
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.