Service difficulty report · Actuator · Boeing 737890

Difficulty date
April 17, 2012
Submitted
April 23, 2012
Operation
Air carrier
Aircraft
N563AS
Make and model
Boeing 737890
Aircraft serial
35180
Aircraft time
20,989 hours, 6,569 cycles
Engine
Cfmint CFM567B27
Part
Actuator
Part number
5416744
Part serial
11597
Condition
Failed
Location
Ram Air Door
Part time
21,032 hours, 6,586 cycles
Stage of operation
TX
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

AIR CONDITIONER ON RECALL AND "PACK" LT ILLUMINATED. EXTINGUISH ON RESET. GROUNDED, YES. PERFORMED BITE TEST TO VERIFY THE FAULT. FOUND RAM AIR ACTUATOR TO BE INOPERATIVE. R & R LT RAM AIR ACTUATOR IAW AMM 21 51 21. PERFORMED BITE CHECK IAW AMM 21 51 21. CHECK NORMAL.