# SDR ASAA2019031528628

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2019
- Submitted: March 19, 2019
- Operation: Air carrier
- Aircraft: [N472AS](https://openairdocs.org/aircraft/N472AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 60580
- Aircraft time: 15,646 hours, 5,112 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 676000141
- Part serial: 676000143983
- Condition: Faulty
- Location: Ram Air Inlet
- Part time: 15,646 hours, 5,112 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019031528628

## Discrepancy

GOT RIGHT "PACK" LIGHT ON RECALL. RT RAM DOOR FULL OPEN ALSO ILLUMINATED. GROUNDED - YES. PER TSR702871 PERFORMED PACK/ZONE TEMP CONTROL BITE TEST ON PACK NR 1 AND NR 2 REF AMM 21-51-00, NO FAULTS NOTED ON PACK/ZONE TEMP CONTROL NR 1, RAM AIR ACTUATOR BITE, PREV FLT, AND VERIFICATION FAULTS NOTED ON PACK/ZONE TEMP CONTROLLER NR 2. REMOVED AND REPLACED NR 2 PACK RAM AIR ACTUATOR REF AMM 21-51-21. OPS CHECK GOOD.

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