# SDR ASAA2018062625215

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2018
- Submitted: June 28, 2018
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 42,869 hours, 12,817 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Controller
- Condition: Malfunctioned
- Location: Ac Bay
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018062625215

## Discrepancy

LEFT PACK LIGHT CAME ON AT RECALL, LIGHT WENT OUT WITH MASTER CAUTION RESET. GROUNDED - YES. REL PER MEL 21-32B, L PK PRIMARY TEMP CONTROL INOP. RESET CONTROLLER, OPS NRML, NO HISTORY, CLEARS MEL 21-32B.

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