# SDR ASAA2023040842799

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2023
- Submitted: April 12, 2023
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 51,052 hours, 15,033 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- 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/ASAA2023040842799

## Discrepancy

UPON MASTER CAUTION RECALL CONT CAB ZONE TEMP ILLUMINATED, LIGHT EXTINGUISHED WHEN MC PRESSED. GROUNDED - YES. REF FIM TASK 21-62 TASK 842, VERIFIED BOTH PACK OPS CHECKED NORMAL ON GND IN ALL TEMP RANGE W/O FAULT LIGHT. BOTH PZTC'S BITE VERIFY TEST PASSED W/O FAULTS. NO DEFECT'S HISTORY FOR LAST 30 DAYS.

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