Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
December 31, 2015
Submitted
January 4, 2016
Operation
Air carrier
Aircraft
N435AS
Make and model
Boeing 737990ER
Aircraft serial
43292
Aircraft time
8,582 hours, 2,807 cycles
Part
Actuator
Part number
676000141
Part serial
676000144578
Condition
Failed
Location
Ram Air
Part time
581 hours, 186 cycles
Stage of operation
LD
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 LANDING, MASTER CAUTION ON RECALL, LT PACK LIGHT ILLUMINATED, DID NOT RESET. ACFT GROUNDED. PERFORMED BITE OF BOTH PACK ZONE TEMP CONTROLLERS REF AMM 21-61-00. FOUND LT PACK ZONE TEMP CONTROLLER FAULTING, INLET ACTUATOR IN VERIFY TEST. R & R LT INLET SMART RAM AIR DOOR ACTUATOR REF AMM 21-51-21. ALL TESTS PASS. NO NEW FAULTS IN PACK ZONE TEMP CONTROLLER.