Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
October 19, 2018
Submitted
November 21, 2018
Operation
Air carrier
Aircraft
N448AS
Make and model
Boeing 737990ER
Aircraft serial
36356
Aircraft time
10,291 hours, 3,456 cycles
System (JASC)
7603 · Power Lever
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 PERFORMING T/C 78273000 FOUND LONG TIME FAULT ON ENGINE NR 1 MSG NBR 76-31361. THE START LEVER SIGNALS DISAGREE. GROUNDED - YES. ACCOMPLISHED FIM 76-11 TASK 801 NR 1 ENGINE "START LEVER SIGNAL DISAGREE" FAULT ISOLATION (MSG 76-31361) & T/C 78273000, BOTH CURRENT FAULT & FAULT HISTORY SHOW NO FAULTS, OPS CK NML.