Service difficulty report · Controller · Boeing 737990ER

Difficulty date
May 1, 2016
Submitted
May 3, 2016
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
2,066 hours, 656 cycles
Part
Controller
Part number
510901601
Part serial
5109016002117
Condition
Failed
Location
Cabin Temp
Part time
2,055 hours, 654 cycles
Stage of operation
NR
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

ON RECALL ZONE TEMP LIGHTS ON FWD CAB AND CONT CABIN ILLUMINATES, RESETS WITH MASTER CAUTION RESET. ACFT GROUNDED. REF LP 11647860 RT PACK LIGHT ILLUMINATES ON RECALL EXTINGUISHED ON RESET OF MASTER CAUTION, FOUND RT AUTO TEMP CONTROLLER LOGGED, CONTROLLER FAULT AND COULD NOT RESET. FOUND IT INOPERATIVE REPLACED RT AUTO TEMP CONTROLLER IAW AMM TASK 21-61-20. BOTH AUTO TEMP CONTROLLERS BITE PROCEDURES TEST IAW AMM TASK 21-61-00, OPS CK GOOD. NO EXISTING FAULT.