SDR UALA2011033101544

Service difficulty report · Cradle · Boeing 777222

Difficulty date: March 31, 2011
Submitted: April 11, 2011
Operation: Air carrier
Aircraft: N776UA
Make and model: Boeing 777222
Aircraft serial: 26937
Aircraft time: 61,525 hours, 11,111 cycles
Engine: Pwa PW4077
System (JASC): 2340 · Interphone/Passenger Announcement (PA) System
Part: Cradle
Condition: Defective
Location: Cockpit
Stage of operation: NR
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

INTERPHONE BUSY IN COCKPIT. SWAPPED IN PA-CI CONTROLLER PER MM, NO HELP. SWAPPED IN AUDIO MANAGEMENT UNIT PER MM, NO HELP. ALSO REPLACED COCKPIT INTERPHONE JACK, NO HELP. PROBLEM SEEMS TO BE WITH COCKPIT HANDSET CRADLE MAGNET LOCATION, CAUSING PHONE NOT TO HANG UP PROPERLY. INSTALLED MAGNET ON FLIGHT DECK HANDSET CRADLE, INTERPHONE OPERATION NORMAL .