Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
December 21, 2013
Submitted
December 24, 2013
Operation
Air carrier
Aircraft
N407AS
Make and model
Boeing 737990ER
Aircraft serial
41731
Aircraft time
4,219 hours, 1,329 cycles
Part
Warning Light
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
TX
How discovered
O
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

ON RECALL, LT PACK LIGHT ILLUMINATED WHEN MASTER CAUTION SYSTEM IS RESET. ACFT GROUNDED. PERFORMED BITE TEST IAW AMM 21-61-00-700-806-002. NO FAULTS, GREEN GO LIGHT ILLUMINATED.