Service difficulty report · Smoke Detector · Boeing 777223

Difficulty date
April 4, 2021
Submitted
April 6, 2021
Operation
Air carrier
Aircraft
N773AN
Make and model
Boeing 777223
Aircraft serial
29583
Aircraft time
85,216 hours, 10,678 cycles
Part
Smoke Detector
Condition
False Activation
Location
L4 Lavatory
Stage of operation
AP
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 WAS NOT GROUNDED: AMBER SMOKE LAVATORY EICAS ILLUMINATED ON APPROACH, SIREN HEARD AT 4L LAVATORY; NO SMOKE FOUND. ACCOMPLISHED LAVATORY SMOKE DETECTOR SELF TEST IAW AMM 26-13-00, OPS CHECK GOOD.