# SDR UALA2013040102081

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2013
- Submitted: May 8, 2013
- Operation: Air carrier
- Aircraft: N127UA
- Make and model: Boeing 747422
- Aircraft serial: 28813
- Aircraft time: 54,644 hours, 6,381 cycles
- Engine: Pwa PW4056
- System (JASC): [2340 · Interphone/Passenger Announcement (PA) System](https://openairdocs.org/jasc/2340)
- Part: Electronic Unit
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013040102081

## Discrepancy

LOUD SQUEAL IN PA BY ROW 6.  REPLACED IOEU'S AT ROWS 6 & 7 CDEF PER AMM, OPS CHECK OK.  NO MORE SQUEAL.

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