# SDR ASAA2021100536185

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2021
- Submitted: October 6, 2021
- Operation: Air carrier
- Aircraft: [N474AS](https://openairdocs.org/aircraft/N474AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40715
- Aircraft time: 23,576 hours, 7,480 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 676000141
- Part serial: 676000144300
- Condition: Failed
- Location: R Ram Air Exhaus
- Part time: 23,564 hours, 7,478 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: M
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021100536185

## Discrepancy

RIGHT PACK OVERHEAT ON CLIMBOUT FL260. GROUNDED - YES. FOUND RIGHT PACK RAM AIR EXHAUST ACTUATOR FAILED CLOSED, REMOVE AND REPLACED EXT ACT REF B737-900ER AMM 21-51-27 OPS CHECK GOOD.

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