# SDR ASAA2015012610438

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2015
- Submitted: January 28, 2015
- Operation: Air carrier
- Aircraft: [N409AS](https://openairdocs.org/aircraft/N409AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41733
- Aircraft time: 7,802 hours, 2,518 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/ASAA2015012610438

## Discrepancy

ON RECALL, LEFT PACK LIGHT ILLUMINATED - IT RESET WITH PUSHING THE MASTER CAUTION. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT.  BITE OF PACK ZONE TEMP CONTROLLERS IAW MM 21-61-00-700-806-002 SHOWED NO FAULTS AND VERIFY TESTS PASSED.  OPERATED LT PACK AT VARIOUS TEMPERATURE SETTINGS AND RETESTED IAW SAME.  OPS NORMAL.

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