Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
June 17, 2017
Submitted
June 20, 2017
Operation
Air carrier
Aircraft
N408AS
Make and model
Boeing 737990ER
Aircraft serial
41732
Aircraft time
18,013 hours, 5,838 cycles
Part
Actuator
Part number
5416744
Part serial
16509
Condition
Failed
Location
Ram Air Exhaust
Part time
18,055 hours, 5,849 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 ON. ACFT GROUNDED. PACK ZONE BITE CHECK INDICATES THE LT RAM AIR INLET ACTUATOR FAULTED, VERIFIED LT RAM AIR INLET ACTUATOR FAILED. REPLACED THE ACTUATOR IAW AMM 21-51-21. OPS CHECKED GOOD, BITE CHECKED GOOD.