# Proposed AD 99-SW-35-AD: Eurocopter France Model AS332C, L, and L1 Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-20-17
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: July 14, 2000, 65 FR 43720
- Comments due: September 12, 2000
- Became: [AD 2000-20-17](https://openairdocs.org/ad/2000-20-17)
- Docket: 99-SW-35-AD
- FR document: 00-17839
- Official PDF: https://openairdocs.org/files/sha256/17/40/174007fa10f86575204aab738a00bacb2b35d72968d4e447b98c806beee4b5b4 (from https://www.govinfo.gov/content/pkg/FR-2000-07-14/pdf/00-17839.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/07/14/00-17839/airworthiness-directives-eurocopter-france-model-as332c-l-and-l1-helicopters
- Page: https://openairdocs.org/proposed/99-SW-35-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD) for Eurocopter France Model AS332C, L, and L1 helicopters. That proposed AD would have required inspecting the horizontal stabilizer spar tube (spar tube) for corrosion, hardness, cracks, and scratches, and if necessary, replacing any unairworthy spar tube and bushing with an airworthy spar tube and bushing. That proposal was prompted by the loss of a horizontal stabilizer in flight due to a spar tube failure. This action revises the proposed AD by correcting the model number given in the applicability section. The actions specified by this proposed AD are intended to prevent failure of the spar tube, separation of the horizontal stabilizer and impact with the main or tail rotor, and subsequent loss of control of the helicopter.

## Notices in this docket

- Mar 28, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-7553, comments due May 30, 2000 (https://www.federalregister.gov/documents/2000/03/28/00-7553/airworthiness-directives-eurocopter-france-model-as332c-l-and-l1-helicopters)
- Jul 14, 2000: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 00-17839, comments due Sep 12, 2000 (https://www.federalregister.gov/documents/2000/07/14/00-17839/airworthiness-directives-eurocopter-france-model-as332c-l-and-l1-helicopters)

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