# SDR RAIA0005015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2000
- Submitted: May 15, 2000
- Operation: Air carrier
- Aircraft: N552HK
- Make and model: Jetair JETSTM4101
- Aircraft serial: 41057
- Aircraft time: 12,750 hours, 10,910 cycles
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Control Valve
- Part number: 5326C000
- Condition: Failed
- Location: A/C Bay
- Part time: 12,750 hours, 10,910 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RAIA0005015

## Discrepancy

7444-STL-  CREW REPORTS VIBRATION FELT THROUGH AIRFRAME ACCOMPANIED BY GROWLING SOUND.  MAINTENANCE INSPECTED, DETERMINED TO BE TEMP CONTROL VALVE.  MAINTENANCE DEFERRED PER MEL.  MAINTENANCE REPLACED LEFT TEMP CONTROL VALVE.

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