Service difficulty report · Smoke Detector · Boeing 777223

Difficulty date
March 3, 2021
Submitted
March 5, 2021
Operation
Air carrier
Aircraft
N773AN
Make and model
Boeing 777223
Aircraft serial
29583
Aircraft time
84,917 hours, 10,627 cycles
Part
Smoke Detector
Condition
False Activation
Location
Zone 900 - Lav/G
Stage of operation
NR
How discovered
V
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 WAS NOT GROUNDED: AFT LH LAVATORY SMOKE ALARM CAME ON WITH EICAS AND HORN AND LIGHT INDICATION, BUT NO SMOKE NOTED; ALARM RESET OK. ACCOMPLISHED CABIN TESTS IAW AMM 23-31-00-730-801, OPS CHECK GOOD.