Service difficulty report · Unknown · Boeing 737890

Difficulty date
December 24, 2011
Submitted
December 27, 2011
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
21,150 hours, 6,218 cycles
Part
Unknown
Condition
Malfunctioned
Location
Ac Bay
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

ZONE TEMP LIGHT ILLUMINATED AFTER T/O. LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. BITE SHOWS FLT DK ZONE VALVE. RESET AND REVERIFIED FAULT DID NOT RETURN.