Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
November 27, 2017
Submitted
November 29, 2017
Operation
Air carrier
Aircraft
N491AS
Make and model
Boeing 737990ER
Aircraft serial
44109
Aircraft time
8,037 hours, 2,726 cycles
Part
Warning Light
Part number
UNKNOWN
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 ILLUMINATED ON RECALL. ACFT GROUNDED. ACCOMPLISHED PACK/ZONE TEMP CONTROL BITE TEST IAW AMM TASK 21-61-00-700-806-002. BITE & PREV FLT SHOWED TCV FAULT. RESET, RAN TEST. CLEARED FAULT. RAN PACK FOR 10 MINUTES. NO FAULTS.