# SDR ASAA2023040642759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2023
- Submitted: April 10, 2023
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 53,162 hours, 16,063 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- 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/ASAA2023040642759

## Discrepancy

ON RECALL CONT CAB ZONE TEMP LIGHT ON, MASTER CAUTION RESET LIGHT GOES OUT. GROUNDED - YES. ACCOMPLISHED PZTC BITE AND HAD "FLT DECK TCV" FAULT ON PREV FLIGHT. FAULT CLEARED AND OPS TEST PASS REF B737-800 FIM 21-62 TASK 801.

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