Service difficulty report · Engine Control · Boeing 737522

Difficulty date
January 5, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N916UA
Make and model
Boeing 737522
Aircraft serial
25383
Engine
Cfmint CFM563C1
Part
Engine Control
Part number
SCR501545
Condition
Failed
Location
Nr 1 Engine
Stage of operation
CL
Nature of condition
O
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NUMBER ONE ENGINE SURGES AT HIGH POWER SETTINGS WITH AUTO THROTTLE ON AND OFF. ALSO, SURGE WAS NOTICEABLE WITH AIRCRAFT IN YAW, BUT NOT NOTICEABLE AT LOWER POWER SETTINGS. REPLACED MAIN ENGINE CONTROL, CHECKS OK.