Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
June 25, 2019
Submitted
June 27, 2019
Operation
Air carrier
Aircraft
N492AS
Make and model
Boeing 737990ER
Aircraft serial
44110
Aircraft time
14,456 hours, 4,754 cycles
Part
Warning Light
Condition
False Activation
Location
Lt A/C Pack
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

AFTER ENGINE START LH PACK LIGHT ILLUMINATED ON RECALL. LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. RH ZONE CONT LOGS 'TCV' FAULT, FAULT CLEARED & BOTH CK NML PER B737-900 AMM 21-61-00. GND VERIFICATION SUCCESSFUL.