Service difficulty report · Warning Light · Boeing 737890

Difficulty date
March 30, 2021
Submitted
March 31, 2021
Operation
Air carrier
Aircraft
N533AS
Make and model
Boeing 737890
Aircraft serial
35201
Aircraft time
38,181 hours, 11,037 cycles
Part
Warning Light
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

L 'PACK' ILLUMINATED ON RECALL. GROUNDED - YES. BITE OF NR 1 CONTROLLER SHOWS TCV FAULT. TEST OF CONTROLLER REF B737-800 AMM 21-61-20-400-801 PASS FAULT CLEARS AND OPS NORMAL.