Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
July 24, 2019
Submitted
July 30, 2019
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
13,551 hours, 4,332 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 PERFORMING TASK CARD NUMBER 78273000, FOUND MAINT MESSAGE 75-30452 - "VBV POSITION SIGNALS DISAGREE" PRESENT ON #2 ENGINE. GROUNDED - YES. ACCOMPLISHED T/C 78273000. NO FAULTS FOR LAST 10 FLT LEGS.