# Proposed AD 96-CE-69-AD: The New Piper Aircraft, Inc. (Formerly Piper Aircraft Corporation) PA-31 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-25-01
- Action: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period.
- Published: July 21, 2000, 65 FR 45323
- Comments due: September 8, 2000
- Became: [AD 2000-25-01](https://openairdocs.org/ad/2000-25-01)
- Docket: 96-CE-69-AD
- FR document: 00-18525
- Official PDF: https://openairdocs.org/files/sha256/04/87/04873cec2d4067a4655a257dac455245001ad3d53eb7b0ef93710febfd802162 (from https://www.govinfo.gov/content/pkg/FR-2000-07-21/pdf/00-18525.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/07/21/00-18525/airworthiness-directives-the-new-piper-aircraft-inc-formerly-piper-aircraft-corporation-pa-31-series
- Page: https://openairdocs.org/proposed/96-CE-69-AD

## Summary

This document proposes to revise an earlier proposed airworthiness directive (AD) that would apply to The New Piper Aircraft, Inc. (Piper) PA-31 series airplanes. The earlier NPRM would have superseded AD 80-26-05, which requires you to repetitively inspect the main landing gear (MLG) inboard door hinges and attachment angles for cracks on the affected airplanes, and requires you to replace any cracked MLG inboard door hinge or attachment angle. The earlier NPRM proposed to require you to inspect the original design MLG inboard door hinge assemblies for cracks; and replace the original design MLG inboard door hinge assemblies with parts of improved design either immediately (cracks) or at a certain time period (no cracks). This supplemental NPRM results from reports of cracks in the improved design MLG inboard door hinge assemblies on the affected airplanes. We are revising the NPRM to propose inspections on the improved design parts as well as the original design parts. The actions specified by the proposed AD are intended to detect and correct cracked MLG inboard door hinge assemblies. These cracked door hinge assemblies could result in the MLG becoming jammed with consequent loss of control of the airplane during landing operations.

## Notices in this docket

- Feb 19, 1997: Advance notice of proposed rulemaking (ANPRM). (first notice), FR document 97-3959, comments due May 16, 1997 (https://www.federalregister.gov/documents/1997/02/19/97-3959/airworthiness-directives-the-new-piper-aircraft-inc-formerly-piper-aircraft-corporation-pa-31-pa-31p)
- Oct 21, 1997: Notice of proposed rulemaking (NPRM)., FR document 97-27794, comments due Dec 26, 1997 (https://www.federalregister.gov/documents/1997/10/21/97-27794/airworthiness-directives-the-new-piper-aircraft-inc-formerly-piper-aircraft-corporation-models-pa-31)
- Jul 21, 2000: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period., FR document 00-18525, comments due Sep 8, 2000 (https://www.federalregister.gov/documents/2000/07/21/00-18525/airworthiness-directives-the-new-piper-aircraft-inc-formerly-piper-aircraft-corporation-pa-31-series)

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