# SDR UALA2013031301490

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2013
- Submitted: March 14, 2013
- Operation: Air carrier
- Aircraft: [N121UA](https://openairdocs.org/aircraft/N121UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 29167
- Aircraft time: 58,248 hours, 6,786 cycles
- Engine: Pwa PW4056
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Cap
- Condition: Missing
- Location: Audio Panel
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013031301490

## Discrepancy

LEFT VHF ON F/O AUDIO PANEL HAS CAP MISSING.  REPLACED F/O`S AUDIO PANEL CAP, CHECKED OK ON GROUND.

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