Service difficulty report · Warning Message · Boeing 767328

Difficulty date
August 4, 2021
Submitted
August 6, 2021
Operation
Air carrier
Aircraft
N1499A
Make and model
Boeing 767328
Aircraft serial
27428
Part
Warning Message
Condition
False Activation
Location
Fwd Equip
Stage of operation
TX
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

AFTER LANDING FWD EQUIP OVERHEAT, WITH FWD EQ SUP FAN 1 STATUS MDG DISPLAYED(<P>PERFORMED TROUBLESHOOTING IAW B767 FIM 21-58 FAULT TREE 991 BLOCK 1. VERIFIED BOTH C/B'S IN. REMOVED ELECTRICAL POWER FROM A/C AND MOVED SWITCH IN AUTO. SUPPLIED ELECTRICAL POWER TO A/C. FWD EQ SUP FAN 1 WENT AWAY. VERIFIED IN STANDBY MODE MESSAGE NOT SHON. FAN 1 OPERATES AND C/B'S NOT POPPED. SYSTEM OPERATES NORMAL. A/C OK FOR CONTINUED SERVICE</P>)