# SDR CA160217004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2016
- Submitted: April 22, 2016
- Operation: General aviation
- Make and model: Bell 429
- Registry model: [Bell 429](https://openairdocs.org/model/bell-helicopter-textron-canada-429) (OpenAirDocs)
- Aircraft time: 51 hours
- Engine: Pwc PW207D
- System (JASC): [6330 · Main Rotor Transmission Mount](https://openairdocs.org/jasc/6330)
- 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
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA160217004

## Discrepancy

(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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