Service difficulty report · Actuator · Boeing 737890

Difficulty date
March 5, 2016
Submitted
March 7, 2016
Operation
Air carrier
Aircraft
N558AS
Make and model
Boeing 737890
Aircraft serial
35177
Aircraft time
37,210 hours, 10,897 cycles
Part
Actuator
Part number
5416744
Part serial
8566
Condition
Failed
Location
Ram Air Exhaus
Part time
43,929 hours, 17,285 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 AND EXTINGUISHES WHEN MASTER CAUTION IS RESET. ACFT GROUNDED. ACCOMPLISHED PACK ZONE TEMPERATURE CONTROLLER BITE AND FOUND CURRENT FAULT AND PREVIOUS FAULT OF LT PACK RAM AIR DOOR ACTUATOR. REMOVED RAM AIR ACTUATOR REF AMM 21-51-21-000-801. ACCOMPLISHED RAM AIR INLET ACTUATOR INSTALLATION 3A-3G 1,1C. COMPLETED INSTALLATION OF ACTUATOR, OPS CHECK GOOD, NO FAULTS.