# SDR ASAA2015122214426

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2015
- Submitted: December 24, 2015
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 8,489 hours, 2,790 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Light
- Condition: False Activation
- Location: Cabin Temp
- Stage of operation: LD
- 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/ASAA2015122214426

## Discrepancy

ON LANDING LT & RT PACK LIGHT ILLUMINATED BOTH EXTINGUISHED APPROXIMATELY AFTER 1 MINUTE PUSHING MASTER CAUTION RECALL BOTH LIGHTS RE-ILLUMINATED.  ACFT GROUNDED. PERFORMED BITE TEST PACK/ZONE TEMP CONTROLLERS IAW FIM 21-62-801, NR 1 CONTROLLER SHOWS RAM AIR INTAKE FAULT.  REF MEL 21-5D, OPS PROCEDURE NOTE 1.  BITE TEST NR 2 CONTROLLER NO FAULT, OK TO CONTINUE.

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