Service difficulty report · Warning System · Boeing 777222

Difficulty date
May 30, 2014
Submitted
June 3, 2014
Operation
Air carrier
Aircraft
N797UA
Make and model
Boeing 777222
Aircraft serial
26924
Aircraft time
72,330 hours, 9,945 cycles
Engine
Pwa PW40903
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
IN
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

LOWER EICAS HAS ATC MODE S TRANSPONDER & RT MX MSG 34-49995. RESET SYS & ACCOMPLISHED TRANSPONDER OPERATION CHECK IAW MM 34-53-02.