What was found
COMM ON SERVICE INTERPHONE. NOISY & INOPERATIVE FROM AUDIO SELECTOR PANEL. NORMAL FROM OTHER CREW POSNS. LOUD BACKGROUND NOISE-BUZZ, CONTINUOUS IN ALL SELECTIONS. REPLACED NR 2 AUDIO SELECTOR PANEL, TESTED OKAY.
- Difficulty date
- May 17, 2011
- Submitted
- May 19, 2011
- Operation
- Air carrier
- Aircraft
- N546UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25367
- Aircraft time
- 73,095 hours, 21,279 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2340 · Interphone/Passenger Announcement (PA) System
- Part
- Selector Panel
- Part number
- 503111
- Part serial
- 15
- Condition
- Faulty
- Location
- Interphone
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.