# SDR ASAA2023040442729

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2023
- Submitted: April 6, 2023
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 51,556 hours, 15,131 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 5416744
- Part serial: 11232
- Condition: Unknown
- Location: Lh Ram Air Inlet
- Part time: 62,749 hours, 18,934 cycles
- Stage of operation: NR
- 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/ASAA2023040442729

## Discrepancy

LEFT PACK LIGHT ON MASTER CAUTION RECALL. GROUNDED - YES. DURING VERIFY NOTED LH RAM AIR INLET ACTUATOR EMITTING A CLICKING SOUND. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21.

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