Service difficulty report · Warning Message · Boeing 737890

Difficulty date
May 28, 2021
Submitted
June 1, 2021
Operation
Air carrier
Aircraft
N537AS
Make and model
Boeing 737890
Aircraft serial
35204
Aircraft time
35,113 hours, 10,175 cycles
Part
Warning Message
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
TX
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

UPON COMPLETION OF AFTER START CK LIST - RECALL "PACK" LIGHT ILLUMINATED FOR L PACK. COMPLETED QRH NOT ABLE TO RESET. GROUNDED - YES. FOUND LEFT PACK LIGHT ILLUMINATING ON RECALL AND EXTINGUISHING ON RESET. #1 ZONE CONT LOGGED RAM AIR ACT FAULT. FAULT CLEARED AND OPS NML PER B737-800 AMM 21-61-00. GND VERIFICATION SUCCESSFUL.