# SDR ASAA0957129

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2009
- Submitted: December 7, 2009
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 11,811 hours, 3,692 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning System
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0957129

## Discrepancy

RT PACK LIGHT ILLUMINATED ON GROUND PRIOR TO TAKEOFF.  RAN QRH, WOULD NOT EXTINGUISH.  FOUND THAT RT PACK LIGHT WOULD RESET W/MASTER CAUTION.  NR 2 CONTROLLER SHOWS RAM AIR SENSOR FAULT IN BIT & LAST FLT.  VERIFY TEST GOOD.  RESET FAULT.  FAULT DID NOT RETURN.  OPS CHECK RT PACK GOOD.  PERFORMED GROUND VERIFICATION.  SYS OPS NORMAL. REF FIM 21 53 TASK 804 & FIM 21 62 TASK 820.

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