Service difficulty report · Warning System · Boeing 737890

Difficulty date
July 11, 2016
Submitted
July 13, 2016
Operation
Air carrier
Aircraft
N537AS
Make and model
Boeing 737890
Aircraft serial
35204
Aircraft time
17,800 hours, 5,235 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
NR
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

NR 1 ENGINE ANTI-ICE LIGHT SWITCH TURNED ON AND COWL VALVE OPEN LIGHT REMAINS ILLUMINATED BRIGHT. ACFT GROUNDED. PERFORMED FIM 30-21, TASKS 804 AND 805. OPERATED NORMALLY. SUSPECT INTERMITTENT FAULT IAW FIM. OK FOR SERVICE.