# SDR ASAA0854037

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2008
- Submitted: December 15, 2008
- Operation: Air carrier
- Aircraft: [N583AS](https://openairdocs.org/aircraft/N583AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35681
- Aircraft time: 5,646 hours, 1,709 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 3989083
- Part serial: 6684
- Condition: Faulted
- Location: Rt A/C Pack
- Part time: 2,923 hours, 899 cycles
- Stage of operation: TX
- 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/ASAA0854037

## Discrepancy

ON MASTER CAUTION RECALL GOT MASTER CAUTION AIR COND AND RT PACK LIGHT.  IT EXTINGUISHES ON RESET GROUNDED YES.  PERFORMED PACK/ZONE TEMP CONTROL BITE TEST PER FIM TASK 21-62 TASK 801.  FOUND FAULT WITH TRIM CONTROL VALVE RT. R&R RT TRIM VALVE PER FIM TASK 21-62 TASK 828.  CONFIRMED PROPER ETOPS PN W/ ROB.  PERFORMED PACK/ZONE TEMP CONTROL TEST SECOND TIME.  NO FAULTS NOTED.  OK FOR ETOPS.  NO LEAKS NOTED.

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