Service difficulty report · Clamp · Beech F90

Difficulty date
September 3, 2008
Submitted
September 17, 2008
Operation
General aviation
Aircraft
N90BD
Make and model
Beech F90
Aircraft serial
LA134
Engine
Pwa PT6A60A
Propeller
Hartzl HCB4TN3
Part
Clamp
Part number
C13019S
Condition
Failed
Location
Blade
Part time
5,569 hours
Stage of operation
IN
How discovered
9
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

PROPELLER UNIT WAS OVERHAULED ON JULY 28, 2008, WO 79785. THE PROPELLER WAS INSTALLED ON ACFT AUG 27, 2008. UPON RUN UP OF ACFT, THE MECHANIC NOTED A GREASE LEAK FROM THE PROPELLER BLADE. A CRACK WAS FOUND. O/H FACILITY WAS NOTIFIED OF THE FINDINGS. THE PROPELLER WAS REMOVED FROM THE ACFT AND RETURNED TO THE FACILITY FOR INSPECTION . O/H FACILITY VERIFIED THE SAME FINDINGS. BLADE CLAMP WAS REMOVED AND REPLACED WITH AN OHC CLAMP ASSY. ALL WORK WAS PERFORMED IAW SRM 118F, 202A, AND 133C. (K)

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