# SDR 2023F00062

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2023
- Submitted: February 22, 2023
- Operation: General aviation
- Aircraft: XAAMB
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 36703
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Part number: 22064002
- Part serial: 9331
- Condition: Oscillates
- Stage of operation: IN
- How discovered: C
- Nature of condition: Z
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023F00062

## Discrepancy

DUE PRESURIZATIONOSCLLATION +/- 1000 FTS AND HIGH ALTITUD ALERT,    1. -PACK OPERATION CONFIDENCE CHECK WAS PERFORMED I.A.W.A.M.M TASK21-00-05-780-801 TEST CORRECT.-  2.- CHECK WIRING FOR CONTINUITY AND ISOLATION IAW WDM 21-51-12 ALL CORRECT.-     3.- TCV WAS REPLACE IA. W AMM 21-51-10-000-801/400-801 TEST CORRECT     4.- AIR CYCLE MACHINE TORQUE CHECK IAW AMM 21-51-0-700-804-5 LB/IN     5.- ACM WAS REPLACED IAW AMM 21-51-04-00-802-002/400-002 TEST CORRECT

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