Service difficulty report · Light · Boeing 737990ER

Difficulty date
February 3, 2026
Submitted
February 5, 2026
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
44,033 hours, 13,712 cycles
Part
Light
Condition
No Discrepancy
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY LIGHTS REMAIN ILLUMINATED UPON SHUTDOWN OF BATTERY SWITCH ON SECURE CHECKLIST. GROUNDED - YES. PERFORMED AMM 33-51-00 FOR EMERGENCY LIGHTS OPS CHECK. OPS CHECK GOOD, LIGHTS REMAIN OFF WITH SHUTDOWN OF BATTERY SWITCH. NO HISTORY IN 30 DAYS.