What was found
LOSS OF THE CABIN INTERPHONE SYS. REPLACED ZMU NR 1 WITH NEW UNIT, REINSTALLED CONFIGURATION DATABASE AND OPS TEST. ALL CABIN INTERPHONE HANDSET WORKS NORMAL, MSG GONE IAW MM.
- Difficulty date
- January 12, 2010
- Submitted
- January 13, 2010
- Operation
- Air carrier
- Aircraft
- N798UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26928
- Aircraft time
- 52,302 hours, 7,686 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 2340 · Interphone/Passenger Announcement (PA) System
- Part
- Interphone
- Condition
- Malfunctioned
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.