# SDR ASAA2022092940118

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2022
- Submitted: October 3, 2022
- Operation: Air carrier
- Aircraft: [N586AS](https://openairdocs.org/aircraft/N586AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35189
- Aircraft time: 53,998 hours, 16,168 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 5416744
- Part serial: 98533
- Condition: Faulted
- Location: Ram Air Inlet
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022092940118

## Discrepancy

DURING AFTER START CHECKLIST, RECALL PRESSED, LEFT PACK LIGHT ILLUMINATED, PRESSING MASTER CAUTION AGAIN CANCELED PACK LIGHT. GROUNDED - YES.  REMOVED AND REPLACED LEFT RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21. MODULATION PANELS MOVED TO CLOSED POSITION SMOOTHLY WITHOUT BINDING. PERFORMED A BITE TEST ON THE LEFT PACK/ZONE TEMPERATURE CONTROLLERS REF AMM 21-61-00. NO DEFECTS NOTED AND OPS CHECK GOOD.

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