Service difficulty report · Module · Boeing 767322

Difficulty date
October 24, 2011
Submitted
November 18, 2011
Operation
Air carrier
Aircraft
N651UA
Make and model
Boeing 767322
Aircraft serial
25389
Aircraft time
84,987 hours, 13,567 cycles
Engine
Pwa PW4060
Part
Module
Part number
285T003425
Part serial
1
Condition
Malfunctioned
Location
Left
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

ALTITUDE ALERT CHIME GOES OFF RANDOMLY THROUGHOUT FLIGHT IN CRUISE. REPLACED LEFT SIREN-OWL MODULE M999, REF MM.