# SDR ASAA2017122122977

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2017
- Submitted: December 26, 2017
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 43,422 hours, 13,107 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: Left
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017122122977

## Discrepancy

LEFT PACK LIGHT ILLUMINATED.  COMPLIED WITH QRH PROCEDURES, TURNED LEFT PACK OFF.  ACFT GROUNDED.  ACCOMPLISHED FIM 21-53, TASK 801.  INITIAL EVALUATION SHOWS AN INTERMITTENT FAULT, ACCOMPLISHED TEMP CONTROLLER NR 1 PACK BITE TEST IAW AMM 21-51-00. NO FAULTS NOTED.

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