# SDR ASAA2023092545375

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2023
- Submitted: October 3, 2023
- Operation: Air carrier
- Aircraft: [N457AS](https://openairdocs.org/aircraft/N457AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36355
- Aircraft time: 35,338 hours, 11,185 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 22064002
- Part serial: 10540
- Condition: Failed
- Location: Right
- Part time: 35,372 hours, 11,204 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023092545375

## Discrepancy

REF LP 60919253RH PACK LIGHT ILLUMINATED DURING TAXI. GROUNDED - YES. TROUBLESHOT IAW B737-900 FIM 21-53 TASK 820. REMOVED AND REPLACED RH ACM IAW B737-900 AMM 21-51-04. REMOVED ACM HAD FAN IMPELLER BLADE DAMAGE, NO FURTHER DEFECTS NOTED WITH INSPECTION PER AMM 21-51-04. OPS CHK GOOD. LEAK CHECK GOOD. PERFORMED PACK/ZONE TEMPERATURE CONTROLLER BITE TEST OF BOTH CONTROLLERS IAW AMM 21-61-00. BITE CHECK GOOD. RAN PACK FOR 15 MIN, NO DEFECTS NOTED.

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