Service difficulty report · Microphone · Boeing 777222

Difficulty date
September 21, 2009
Submitted
September 28, 2009
Operation
Air carrier
Aircraft
N775UA
Make and model
Boeing 777222
Aircraft serial
26947
Aircraft time
56,625 hours, 10,434 cycles
Engine
Pwa PW4077
Part
Microphone
Condition
Malfunctioned
Location
Oxygen Mask
Component
Control Panel
Component part number
570111
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.

What was found

OXYGEN MASK PROBLEM CREW COMMENTS: CAPT QUICK DON O2 MIC-SPEAKER INOP. REPLACED AUDIO CONTROL PANEL ON CAPTAIN'S SIDE. OXYGEN MASK SPEAKER CHECKS OKAY. ALSO ACP SYSTEM TEST, CHECKS OKAY.