Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
July 30, 2017
Submitted
July 31, 2017
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
14,054 hours, 4,621 cycles
Part
Warning Light
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
NR
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

LEFT PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. PERFORMED ZONE TEMP CONTROL BITE NR 1 IAW AMM 21-61-00-700-806-002. ON BITE FOUND EXIT LIGHT ILLUMINATE, NO HISTORY OF FAULT ON CONTROLLER, VERIFY PASSED. PERFORMED AMM 21-51-21-710-002. RESET EXIT ACTUATOR INTERNAL FAULTS. SIX CIRCUIT BREAKERS OPENED FOR 10 SECONDS AND RESET. PERFORMED PACK OPS CHECKED LEFT PACK. NO FAULTS.