Service difficulty report · Warning Light · Boeing 737890

Difficulty date
January 30, 2014
Submitted
February 3, 2014
Operation
Air carrier
Aircraft
N512AS
Make and model
Boeing 737890
Aircraft serial
39043
Aircraft time
21,054 hours, 6,472 cycles
Part
Warning Light
Condition
False Activation
Location
Control Valve
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

LEFT PACK LIGHT ILLUMINATED DURING RECAL, EXTINGUSHIES ON RESET. ACFT GROUNDED. LEFT PRIMARY TEMP CONTROL INOPERATIVE, BITE CHECK PERFORMED. LEFT TCV, VERIFY PASS & RESET. NO HISTORY 90 DAYS. OPS GOOD IAW MM 21-61-00-700-806.