# SDR ASAA2018031323880

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2018
- Submitted: March 15, 2018
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 39,724 hours, 11,599 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: Lt A/C Pack
- 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/ASAA2018031323880

## Discrepancy

LEFT PACK LIGHT ILLUMINATED.  EXTINGUISHED WITH A MASTER CAUTION RESET.  ACFT GROUNDED.  IAW FIM 21-53 TASK 807, 1 & 2 PZTC BITE TESTED GOOD. NO PREVIOUS FLT FAULTS LOGGED. VERIFIED LEFT PACK OPS CHECKED NORMAL ON GROUND WITHOUT FAULTS.

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