Service difficulty report · Warning System · Boeing 737890

Difficulty date
June 27, 2018
Submitted
July 2, 2018
Operation
Air carrier
Aircraft
N568AS
Make and model
Boeing 737890
Aircraft serial
35183
Aircraft time
43,645 hours, 13,269 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
IN
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

WHILE ACCOMPLISHING T/C 78273000, FOUND SHORT TIME FAULT FOR ENGINE NR 1 MSG NO 75-30801 T25 SIGNALS DISAGREE. GROUNDED - YES. ENG NR 1 TROUBLESHOOTING DONE REF FIM 75-33 TASK 805: EEC TEST SHOWS NO FAULTS. PT25 SENSORS SHOW WITHIN 2 DEGREES OF EACH OTHER. THIS CLEARS THE PLT.