SDR CALA2013111292843

Service difficulty report · Audio Panel · Boeing 757222

Difficulty date: November 11, 2013
Submitted: November 14, 2013
Operation: Air carrier
Aircraft: N551UA
Make and model: Boeing 757222
Aircraft serial: 25399
Aircraft time: 82,823 hours, 23,935 cycles
Engine: Pwa PW2040
System (JASC): 2350 · Audio Integrating System
Part: Audio Panel
Condition: Faulty
Location: Cockpit
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

OXYGEN MASK AUDIO IS WEAK. ROBBED OXYGEN MASK & AUDIO CONTROL PANEL FROM OBSERVER POSITION TO CAPTAIN'S POSITION, FOUND O2 MASK GND GOOD, BUT SWAPPED O2 MASK & AUDIO CONTROL PANEL. PERFORMED OPERATION TEST AMM IAW 35-11-00, 35-11-51 & 23-51-01 FOR AUDIO CONTROL PANEL. GND CHECKED GOOD.