Service difficulty report · Smoke Detector · Boeing 777223

Difficulty date
September 12, 2020
Submitted
September 18, 2020
Operation
Air carrier
Aircraft
N787AL
Make and model
Boeing 777223
Aircraft serial
30010
Aircraft time
81,459 hours, 9,798 cycles
Part
Smoke Detector
Part number
PU90471WR1
Condition
False Activation
Location
Lavatory
Stage of operation
DE
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

AIRCRAFT NOT GROUNDED: REPEAT WRITE-UP, 3F-1L LAV SMOKE ALARM ACTIVATED IN DESCENT TO LAND. MEL 09-130DC-C, REF 2603 LAV SMOKE DETECTION "LAV UNUSEABLE" AUTHORIZED. SUPPLEMENTAL REPORT. REMOVED AND REPLACED 3F-1L LAVATORY SMOKE DETECTOR, PER AMM 26-13-01. OPERATIONAL CHECK NORMAL, NO FAULTS INDICATED. OKAY FOR SERVICE.