Service difficulty report · Smoke Warning · Boeing 777323ER

Difficulty date
July 22, 2017
Submitted
July 25, 2017
Operation
Air carrier
Aircraft
N722AN
Make and model
Boeing 777323ER
Aircraft serial
31547
Aircraft time
18,079 hours, 2,075 cycles
Part
Smoke Warning
Condition
False Activation
Location
Cockpit
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

THE AIRCRAFT WAS NOT GROUNDED. LAV 4R SMOKE DETECTOR AURAL ALERT AND COCKPIT EICAS MESSAGE SMOKE LAV/COMP WAS ON MOMENTARILY WITH NO SMOKE OR HEAT IN LAV. ACCOMP AMM 26-13-00 LAV SMOKE DETECTION OPERATIONAL TEST NO FAULTS NOTED.