# SDR ASAA2023070543904

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2023
- Submitted: July 7, 2023
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 61,073 hours, 18,428 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Controller
- Part number: 6228145
- Part serial: 62281404049
- Condition: Faulty
- Location: Rh Ecs Bay
- Part time: 56,020 hours, 17,009 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/ASAA2023070543904

## Discrepancy

DURING MC RECALL RT PACK LIGHT ILLUMINATES EXTINGUISHES WITH MC RESET. GROUNDED - YES. RAM AIR CONTROLLER FAULT ON R PZTC. REMOVED AND REPLACED R PZTC AMM REF 21-61-20 OP TEST PASS. REMOVED PZTC PLACED ON SOS.

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