# SDR ASAA2023102845881

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2023
- Submitted: October 31, 2023
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 60,601 hours, 18,166 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/ASAA2023102845881

## Discrepancy

CONT CABIN ZONE TEMP ANNUNCIATOR ILLUMINATES UPON MASTER CAUTION RECALL. GROUNDED - YES. (RESOLVED ON W/O: 1972472 TASKCARD: N/R-00002 ) PERFORMED FIM 21-62 TASK 903. BITE PROCEDURE OF THE LEFT AND RIGHT PACK TEMPERATURE CONTROL PASSED. REF 21-62 TASK 801. THIS CLEARS MEL 21-21H. MAINTENANCE PROCEDURES REVERSED. PLACARD REMOVED. SEAMC CARL NOTIFIED.

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