SDR CALA2014050690965

Service difficulty report · Interphone · Boeing 757222

Difficulty date: May 5, 2014
Submitted: May 6, 2014
Operation: Air carrier
Aircraft: N521UA
Make and model: Boeing 757222
Aircraft serial: 24891
Aircraft time: 76,359 hours, 28,230 cycles
Engine: Pwa PW2040
System (JASC): 2340 · Interphone/Passenger Announcement (PA) System
Part: Interphone
Condition: Malfunctioned
Location: Cabin
Stage of operation: IN
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

CABIN CALL WORKS BETWEEN FA & COCKPIT, BUT TONE ALSO RINGS IN COCKPIT, NO LIGHTS, WHEN FA'S CALL, ABLE TO DUPLICATE PROBLEM . CHIME WAS EVEN GOING OFF CONTINUOUSLY. RESET POWER TO AC. CHIME & COMM BETWEEN FA STATIONS & FLIGHT DECK NOW ALL CHECK GOOD, NO HISTORY.