# Proposed AD 86-CE-23-AD: Pilatus Britten-Norman Ltd. (Formerly Britten-Norman) BN2A MK. 111 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 86-07-02 R1
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 27, 1997, 62 FR 28644
- Comments due: July 2, 1997
- Became: [AD 86-07-02 R1](https://openairdocs.org/ad/86-07-02-R1)
- Docket: 86-CE-23-AD
- FR document: 97-13691
- Official PDF: https://openairdocs.org/files/sha256/ac/b7/acb71ea0246ee01642443f3c27bab2b3219a1e5993e91f578f685be94001305f (from https://www.govinfo.gov/content/pkg/FR-1997-05-27/pdf/97-13691.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/05/27/97-13691/airworthiness-directives-pilatus-britten-norman-ltd-formerly-britten-norman-bn2a-mk-111-series
- Page: https://openairdocs.org/proposed/86-CE-23-AD

## Summary

This document proposes to revise AD 86-07-02, which currently requires repetitively inspecting the junction of the torque link lug and upper case of the main landing gear (MLG) torque link assemblies for cracks on Pilatus Britten-Norman Ltd. (Pilatus Britten-Norman) BN- 2A, BN-2B, BN-2T, and BN2A MK. 111 series airplanes, and replacing any part found cracked with a like part. The proposed AD would remove from the applicability the BN-2A, BN-2B, and BN-2T series airplanes, and would retain the repetitive inspection and replacement (if necessary) requirements of AD 86-07-02 for the BN2A MK. 111 series airplanes. The proposed AD results from the Federal Aviation Administration's determination that additional AD action needs to be taken on the BN-2A, BN-2B, and BN-2T series airplanes. This additional action will be addressed in a separate AD. The actions specified by the proposed AD are intended to prevent failure of the main landing gear caused by cracks in the torque link area, which could lead to loss of control of the airplane during landing operations.

## Notices in this docket

- Mar 6, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-5491, comments due May 12, 1997 (https://www.federalregister.gov/documents/1997/03/06/97-5491/airworthiness-directives-pilatus-britten-norman-ltd-formerly-britten-norman-bn2a-mk-111-series)
- May 27, 1997: Notice of proposed rulemaking (NPRM)., FR document 97-13691, comments due Jul 2, 1997 (https://www.federalregister.gov/documents/1997/05/27/97-13691/airworthiness-directives-pilatus-britten-norman-ltd-formerly-britten-norman-bn2a-mk-111-series)

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