Service difficulty report · Spring · Bell 429

Difficulty date
February 15, 2016
Submitted
April 22, 2016
Operation
General aviation
Make and model
Bell 429
Aircraft time
51 hours
Engine
Pwc PW207D
Part
Spring
Part number
429310201105
Condition
Debonded
Location
Pitch Restraint
Part time
73 hours
Stage of operation
CR
How discovered
O
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

(CAN) DEBONDING BETWEEN INNER MEMBER AND OUTER MEMBER OF ASSY. THE PITCH RESTRAINT SPRING ASSY DID HAVE AN ASB 429-13-10 ON 29 APRIL 2013 ON A LIMITED QUANTITY OF UNITS THAT WERE MFG WITH INADEQUATE ADHESIVE MIX RATIO BETWEEN THE TUBE AND THE HOUSING. THIS CONDITION MAY CAUSE A BOND LINE SEPARATION. ACFT WAS NOT PART OF THE HELICOPTERS AFFECTED.

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