# Proposed AD 97-NM-116-AD: Bombardier Model CL-600-2B19 (Regional Jet Series 100 and 200) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-16-25
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 9, 1998, 63 FR 31377
- Comments due: July 9, 1998
- Became: [AD 98-16-25](https://openairdocs.org/ad/98-16-25)
- Docket: 97-NM-116-AD
- FR document: 98-15252
- Official PDF: https://openairdocs.org/files/sha256/db/f6/dbf6b9d93a06347d51767809a6b9eef7e5fcc5b7d938ecf511efa0ca21795f70 (from https://www.govinfo.gov/content/pkg/FR-1998-06-09/pdf/98-15252.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/06/09/98-15252/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-200-airplanes
- Page: https://openairdocs.org/proposed/97-NM-116-AD

## Summary

This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 and 200) airplanes, that currently requires repetitive inspections to detect discrepancies of the shock strut end caps and attachment pins of the main landing gear (MLG), and replacement of discrepant parts with new parts. It also requires a check for and replacement of certain pins that currently may be installed on some airplanes. This action would add a requirement for the installation of new, improved MLG shock strut upper and lower attachment pins, which would constitute terminating action for the repetitive inspections. This action also would reduce the applicability of the existing AD by removing certain airplanes. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to prevent failure of attachment pins and the attachment pin end caps, which could result in failure of the MLG.

## Notices in this docket

- Jun 9, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-15252, comments due Jul 9, 1998 (https://www.federalregister.gov/documents/1998/06/09/98-15252/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-200-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.