Service difficulty report · Engine · Cessna 750

Difficulty date
September 4, 2010
Submitted
September 7, 2010
Operation
Air carrier
Aircraft
N910QS
Make and model
Cessna 750
Aircraft serial
7500110
Aircraft time
9,473 hours, 5,827 cycles
Engine
Allsn AE3007C
Engine time
9,810 hours, 6,036 cycles
Part
Engine
Condition
Malfunctioned
Stage of operation
CL
How discovered
O
Nature of condition
E, J
Precautionary procedure
A

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

What was found

AFTER TAKEOFF, PASSING 5000 FT, FELT A SURGE AND LOOKED AND SAW THAT TURBINE PERCENT WAS RED AND SHOWING 101. BROUGHT THE POWER LEVERS BACK TO CLIMB AND THEN GOT AN AMBER "FAN DAMAGE R" CAS MESSAGE. FAULT CODES FOUND ON RT A & B FADECS ARE 401, 422, & 452. FOLLOWED FAULT ISOLATION MANUAL 75-33-00-810-803. CHECKED HARNESS RESISTENCE, GOOD. CHANGED THE CVG ACTUATOR. ENGINE R & R. GROUND RUNS AND LEAK CHECKED IAW MM 71-00-04, SATISFACTORY AT THIS TIME.

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