Service difficulty report · Controller · Boeing 737990ER

Difficulty date
October 24, 2014
Submitted
October 27, 2014
Operation
Air carrier
Aircraft
N413AS
Make and model
Boeing 737990ER
Aircraft serial
35205
Aircraft time
6,413 hours, 2,007 cycles
Part
Controller
Condition
Malfunctioned
Location
Cabin Temp
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

PRIMARY TEMP CONTROL INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED BITE TEST ON BOTH CONTROLLERS AND NR 2 LOGGED FLT DECK TRIM VALVE FAULT. RESET FAULT, PACK/ZONE TEMP CONTROLLER BITE TEST OPS NORMAL IAW FIM TASK 21-61-00-700-806-002. NO HISTORY LAST 90 DAYS.