Service difficulty report · Blade · Boeing 73776N

Difficulty date
May 5, 2014
Submitted
March 12, 2015
Operation
General aviation
Make and model
Boeing 73776N
Aircraft time
47,104 hours
Engine
Ge CFM567B24
Part
Blade
Part number
1957M10P03
Condition
Cracked
Location
Hp Turbine
Part time
30,997 hours
Stage of operation
IN
How discovered
D
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

(CAN) ENGINE WAS REMOVED FOR A PROACTIVE O/H. DURING THE FLOURESCENT PENETRANT INSPECTION OF THE HIGH PRESSURE TURBINE ROTOR BLADES, IT WAS DISCOVERED THAT 2 BLADES EXHIBITED CRACKING AT THE MINIMUM NECK POINT ON THE FIRTREE AT THE CONVEX LOWER POINT.

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