# SDR GTIA050077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2005
- Submitted: April 12, 2005
- Operation: Air carrier
- Aircraft: N829NK
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49931
- Engine: Pwa JT8D*
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Knob
- Condition: Defective
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA050077

## Discrepancy

AC VOLT/FREQ SELECTOR KNOB DOES NOT ROTATE TO ANY POSITION, AIRCRAFT TAIL SWAP TO 825NK.  REMOVED AND REPLACED VOLT/FREQ DEFLECTOR KNOB.  OPS CHECK GOOD.  (K)

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