SDR ASAA2015111413766

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: November 14, 2015
Submitted: November 16, 2015
Operation: Air carrier
Aircraft: N474AS
Make and model: Boeing 737990ER
Aircraft serial: 40715
Aircraft time: 1,437 hours, 469 cycles
System (JASC): 2820 · Aircraft Fuel Distribution System
Part: Warning Light
Condition: False Activation
Location: Spar Valve
Stage of operation: TX
How discovered: 9
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

UPON SHUTTING DOWN ENGINES, BOTH SPAR VALVES CLOSED LIGHTS REMAIN ON BRIGHT BLUE. ACFT GROUNDED. PERFORMED FIM TASK 28-22, TASK 809 AND FIM TASK 28-22, TASK 810 WITH NORMAL FUNCTION ON BOTH SPAR VALVES. NO BRIGHT BLUE LIGHTS ILLUMINATED AFTER TEST, OPS CHECK GOOD.