Service difficulty report · Fire Detector · Boeing 777223

Difficulty date
March 28, 2023
Submitted
April 4, 2023
Operation
Air carrier
Aircraft
N780AN
Make and model
Boeing 777223
Aircraft serial
29956
Aircraft time
86,724 hours, 11,196 cycles
Part
Fire Detector
Part number
473726
Condition
Fault Message
Location
Zone 300 - Stabs
Stage of operation
CR
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

AIRCRAFT WAS NOT GROUNDED: FIRE LOOP 1 APU STATUS MESSAGE CAME ON AT CRUISE AND LATER WENT OUT. **SUPPLEMENTAL REPORT FOR AALA202303292546: REMOVED AND REPLACED APU FIRE DETECTOR ASSEMBLIES M26008 (AALA202303292546), M26009 (AALA202304048899), AND M26010 (AALA202304040098) PER AMM 26-15-01. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.** (CLOSED)