# Airworthiness Directives; de Havilland DHC-6 Series Airplanes
> **Rule** · Final rule. · Published 1995-10-30 · Effective 1995-12-27 · 60 FR 55187
## Document
- **Document number:** 95-26403
- **Category:** airworthiness
- **Manufacturer:** de Havilland DHC-6 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 60 FR 55187
- **Publication date:** 1995-10-30
- **Effective date:** 1995-12-27
- **FAA docket:** Docket No. 93-CE-51-AD
## Abstract

This amendment supersedes Airworthiness Directive (AD) 83-26- 05 and AD 86-15-08, which currently require repetitively inspecting the horizontal stabilizer attachment fittings for cracks or looseness on certain de Havilland DHC-6 series airplanes, and, if a cracked or loose part is found, modifying the horizontal stabilizer. This action retains the repetitive inspection requirement of the existing AD's, requires incorporating an improved modification for airplanes with a certain modification design as terminating action for the repetitive inspections, and making these inspection-terminating modifications optional for other affected airplanes. Reports of loose horizontal stabilizer attachment fittings on airplanes incorporating the inspection-terminating modifications required by AD 83-26-05 prompted this action. The actions specified by this AD are intended to prevent separation of the horizontal stabilizer from the airplane caused by a cracked attachment fitting, and subsequent loss of control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1995/10/30/95-26403/airworthiness-directives-de-havilland-dhc-6-series-airplanes)
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