# Airworthiness Directives; Aviat Aircraft Inc. Models S-2A, S-2B, and S-2S Airplanes (Formerly Pitts Models S-2A, S-2B, and S-2S Airplanes)
> **Rule** · Final rule; request for comments. · Published 1996-05-02 · Effective 1996-05-20 · 61 FR 19540
## Document
- **Document number:** 96-10477
- **Category:** airworthiness
- **Manufacturer:** Aviat
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 61 FR 19540
- **Publication date:** 1996-05-02
- **Effective date:** 1996-05-20
- **FAA docket:** Docket No. 95-CE-101-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to Aviat Aircraft Inc., Models S-2A, S-2B, and S-2S airplanes (formerly Pitts Models S-2A, S-2B, and S-2S airplanes). This action requires inspecting the longerons aft of the rear cabane struts for cracks, and if cracked, prior to further flight, repairing the cracks. Reports of longeron failure caused by fatigue aft of the rear cabane struts prompted this action. The actions specified by this AD are intended to prevent cracking and subsequent failure of the longerons resulting in possible loss of control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1996/05/02/96-10477/airworthiness-directives-aviat-aircraft-inc-models-s-2a-s-2b-and-s-2s-airplanes-formerly-pitts)
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