Service difficulty report · Eec · Boeing 7377Q8

Difficulty date
January 27, 2025
Submitted
January 31, 2025
Operation
General aviation
Aircraft
N711SY
Make and model
Boeing 7377Q8
Aircraft serial
30642
Engine
Cfmint CFM567B20
Part
Eec
Part number
1853M33P06
Part serial
LMDN8027
Condition
Failed
Location
Nr 2 Engine
Stage of operation
CL
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

ENGINE FAIULRE DURING TAKEOFF (RH), FIRE ON ENGINE#2 TAILCONE AFFECTING AIRCRAFT FAIRINGS AND FLAPS. EMERGENCY EVACUATION INICIATED. ENGINE TURBINE STAGES MELTED WITH LOSS OF MATERIAL. INVESTIGATION REVEALS TWO FAILURE MESSAGES STORED IN EEC BITE TEST. (EEC SIGNAL DISAGREE AND EEC SIGNALS OUT OF RANGE) IAW FIM, BOTH MESSAGES SUGGEST EEC REMOVAL AND REPLACE AS THE ONLY ACTION TO SOLVE THE PROBLEM.

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