Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
February 28, 2019
Submitted
March 8, 2019
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
23,576 hours, 7,725 cycles
Part
Actuator
Part number
5416744
Part serial
16698
Condition
Faulty
Location
Ram Air Inlet
Part time
23,623 hours, 7,739 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

LT PACK LIGHT ON /ON RECALL. GROUNDED - YES. REMOVED AND REPLACED LEFT PACK RAM AIR INLET ACTUATOR. OP'S CK GOOD REF AMM 21-51-21-000-801 AND 21-51-21-400-801. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST ON NR 1 AND NR 2 CONTROLLERS OP'S CK GOOD NO FAULTS NOTED ON BOTH BITE TEST REF AMM 21-61-00-700-806-002. THIS CLEARS MEL 21-5C.