SDR HEER117546

Service difficulty report · Swashplate · Bell 230

Difficulty date
September 23, 2007
Submitted
October 1, 2007
Operation
Air carrier
Aircraft
N14UH
Make and model
Bell 230
Aircraft serial
23028
Aircraft time
6,651 hours
Engine
Allsn 250C30G2
Part
Swashplate
Part number
222010400131FM
Part serial
EA152
Condition
Broken
Location
Main Rotor
Part time
6,651 hours
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

THE MECHANIC NOTICED THE CYCLIC LINK HAD COME IN CONTACT WITH THE INNER RING AND DURING HIS INVESTIGATION TO DETERMINE THE CAUSE OF THIS UNUSUAL CONDITION, HE FOUND SEVERAL PARTS TO BE EXCESSIVELY DAMAGED CAUSED BY A BROKEN BOLT 20-057-6-16D, TOTAL TIME 1688.10 OR WORN SLIDERS 222-310-469-103, TOTAL TIME 1688.10. THE SWASHPLATE WAS REMOVED FROM AIRCRAFT AND SENT TO OVERHAUL SHOP TO DETERMINE CAUSE OF FAILURE. COMPLIED WITH ALL CONDITIONAL INSPECTIONS AND OVERHAUL REQUIREMENTS. CONTACTED MFG CUSTOMER REP FOR ADDITIONAL INSTRUCTIONS THAT MFG MAY WANT TO PERFORM. LIST OF DAMAGED PARTS AS FOLLOWS -TOTAL TIME ON ALL 1688.10 - 1 EA. BOLT 20-057-6-16D CRACKED; 1 EA. BOLT 20-057-6-16D EX.

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