# SDR HEEA079726

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2002
- Submitted: June 10, 2002
- Operation: Air carrier
- Aircraft: N22347
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 36005
- Aircraft time: 11,624 hours
- System (JASC): [2340 · Interphone/Passenger Announcement (PA) System](https://openairdocs.org/jasc/2340)
- Part: Interphone
- Part number: A3016W
- Part serial: 8402507
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA079726

## Discrepancy

COMM 1 AND COMM 2 AUDIO SELECT KNOB WON'T MUTE AUDIO. FOUND SWITCHES S1, S2, S3, S4, S9, S10, S11, LIGHT PANEL, VOLUME AND TRANSMIT KNOBS BAD.  REPLACED.  BENCH CHECK GOOD.

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