# SDR ASAA2023052043319

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2023
- Submitted: May 24, 2023
- Operation: Air carrier
- Aircraft: [N468AS](https://openairdocs.org/aircraft/N468AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41735
- Aircraft time: 32,956 hours, 10,406 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 6760000141
- Part serial: 676000145871
- Condition: Faulted
- Location: Lt Ram Air Inlet
- Stage of operation: DE
- 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/ASAA2023052043319

## Discrepancy

LEFT PACK LIGHT ON DURING RECALL AT TOP OF DESCENT. EXTINGUISHES W/MASTER CAUTION RESET. GROUNDED - YES.  FOUND FAULTS ON LH RAM AIR EXHAUST ACTUATOR. REMOVED & REPLACED ACTUATOR REF B737-900 AMM 21-51-27-000/400-801.

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