Service difficulty report · Fan · Boeing 737890

Difficulty date
January 8, 2023
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N563AS
Make and model
Boeing 737890
Aircraft serial
35180
Aircraft time
58,243 hours, 17,141 cycles
Engine
Cfmint CFM567B20
Engine time
43,011 hours, 12,329 cycles
Part
Fan
Condition
Corroded
Location
Nr 1 Engine
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ENG. #1 S/N # 804749, FAN FRAME @ 12:00 O'CLOCK POSITION ( UNDER NUTPLATE) . PREVIOUS CORROSION BLENDED BEYOND LIMITS. REQUIRES ENGINEERING APPROVAL FOR DISPOSITION. GROUNDED - YES. REMOVED #1 ENGINE S/N # 804749, REPLACED WITH S/N # 890571 REF. ASA T/C # 78471000 W/O # 1934298. DEFECT TRANSFERRED TO ASA SHOP W/O# 1938112.