# Proposed AD 96-NM-86-AD: Jetstream Model 4101 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 97-03-08
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 12, 1996, 61 FR 58016
- Comments due: December 23, 1996
- Became: [AD 97-03-08](https://openairdocs.org/ad/97-03-08)
- Docket: 96-NM-86-AD
- FR document: 96-28868
- Official PDF: https://openairdocs.org/files/sha256/f9/4d/f94dbbc2214a2c72f12c84f10b11115729988e41e712339473a44757668b293a (from https://www.govinfo.gov/content/pkg/FR-1996-11-12/pdf/96-28868.pdf)
- Federal Register: https://www.federalregister.gov/documents/1996/11/12/96-28868/airworthiness-directives-jetstream-model-4101-airplanes
- Page: https://openairdocs.org/proposed/96-NM-86-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Jetstream Model 4101 airplanes. This proposal would require repetitive inspections to detect cracking of the offset lightening hole on the drag brace of the left and right main landing gear (MLG); and replacement of these braces with braces having a centralized lightening hole. This replacement terminates the repetitive inspections. This proposal is prompted by a report indicating that fatigue cracking was detected on the upper link of a drag brace. The actions specified by the proposed AD are intended to prevent fatigue cracking of the drag braces of the MLG, which, if not corrected, could cause the MLG to fail and consequent reduced controllability of the airplane during takeoff, landing, and taxiing.

## Notices in this docket

- Nov 12, 1996: Notice of proposed rulemaking (NPRM). (first notice), FR document 96-28868, comments due Dec 23, 1996 (https://www.federalregister.gov/documents/1996/11/12/96-28868/airworthiness-directives-jetstream-model-4101-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.