Service difficulty report · Actuator · Boeing 737890

Difficulty date
August 8, 2021
Submitted
August 11, 2021
Operation
Air carrier
Aircraft
N569AS
Make and model
Boeing 737890
Aircraft serial
35184
Aircraft time
52,558 hours, 15,833 cycles
Part
Actuator
Part number
5416744
Part serial
494440
Condition
Failed
Location
Ram Air Inlet
Part time
86,537 hours, 44,069 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

LEFT PACK LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE PER B737-800 AMM 21-61-00-700-806-002, FAILED FOR RAM AIR ACTUATOR ON M1442 CONTROLLER. REMOVED AND INSTALLED NEW RAM AIR INLET ACTUATOR ON LEFT SIDE PER AMM 21-51-21/401, BITE TEST PASSED. NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL.