Service difficulty report · Warning Light · Boeing 737890

Difficulty date
January 17, 2020
Submitted
January 22, 2020
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
43,804 hours, 13,359 cycles
Part
Warning Light
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
NR
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 AMBER LIGHT ILLUMINATED ON MASTER CAUTION, IT RESET WITH MASTER CAUTION RESET. COMPLETED QRH CHECKLIST. GROUNDED - YES. RAN PACK ZONE TEMP CONT BITES- #1 SHOW THIS PACK TCV. CLEARED FAULT- FAULT DID NOT COME BACK ON NEXT TEST. RAN PACKS HOT/COLD MULTIPLE TIMES - NO DEFECTS NOTED.