# SDR CALA2016082500584

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2016
- Submitted: August 25, 2016
- Operation: Air carrier
- Aircraft: [N66803](https://openairdocs.org/aircraft/N66803), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 42817
- Aircraft time: 9,676 hours, 3,387 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Actuator
- Part number: 676000141
- Part serial: 3120
- Condition: Inoperative
- Location: Ac Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2016082500584

## Discrepancy

IAW CREW VERBAL, CREW COULD NOT PRESSURIZE AND RETURNED TO DEPARTURE.  PRESSURIZED OK OFF APU.  PACK/ZONE TEMP CONTROLLER BITE SHOWS SRADA EXHAUST FAULT.  R & R RAM AIR EXHAUST ACTUATOR.  BITE TEST PASSES AND OPS CHECKED RT PACK NORMAL.  REF AMM 21-51-27.  EVALUATION FLIGHT SET UP DUE HISTORY OF PACK FAULTS.

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