Service difficulty report · Pitch Stop · Beech 95B55

Difficulty date
August 16, 2003
Submitted
September 4, 2003
Operation
General aviation
Make and model
Beech 95B55
Aircraft time
17,408 hours
Engine
Cont IO470L
Propeller
Hartzl BHCC2YF2
Part
Pitch Stop
Part number
57A24041
Condition
Stripped
Location
Prop Cylinder
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

(CAN) DURING INSPECTION OF THE PROP, MAINTENANCE ATTEMPTED TO REMOVE THE SPINNER BUT COULDN'T BECAUSE THE LOW PITCH STOP THREADS WERE STRIPPED, WHERE THE SPINNER ATTACHES TO THE LOW PITCH STOP. THE LOW PITCH STOP HAD TO BE REMOVED FROM THE P ROPELLER SO THE SPINNER COULD BE REMOVED. IT WAS ALSO NOTED THAT THE HOLE IN THEFRONT OF THE SPINNER FOR THE LOW PITCH STOP WAS ENLARGED ALLOWING THE SPINNER T O WOBBLE SLIGHTLY DURING OPERATION CAUSING THE SPINNER AND SPINNER BULKHEAD TO CRACK. THE PROPELLER, LOW PITCH STOP AND SPINNER AND BULKHEAD ASSEMBLY WERE REPLACED.

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