Service difficulty report · Warning Message · Boeing 737890

Difficulty date
January 28, 2020
Submitted
January 31, 2020
Operation
Air carrier
Aircraft
N534AS
Make and model
Boeing 737890
Aircraft serial
35202
Aircraft time
35,756 hours, 10,270 cycles
Part
Warning Message
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AFTER ENGINE START THE LEFT PACK LIGHT ILLUMINATED DURING RECALL. IT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PACK TEMP CONT BITE PROCEDURE IAW FIM 21-62 TASK 801 ON CONT 1 & 2. CONT 1 FAULTED, THIS TCV, PERFORMED RESET AND RE RAN BITE PROCEDURE, BITE TEST IS GOOD.