# Airworthiness Directives; Short Brothers Model SD3-60 Series Airplanes
> **Rule** · Final rule; request for comments. · Published 2005-02-25 · Effective 2005-03-14 · 70 FR 9212
## Document
- **Document number:** 05-3268
- **Category:** airworthiness
- **Manufacturer:** Short Brothers Model SD3-60 Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 70 FR 9212
- **Publication date:** 2005-02-25
- **Effective date:** 2005-03-14
- **FAA docket:** Docket No. FAA-2005-20108
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Short Brothers Model SD3-60 series airplanes. This AD requires, for certain airplanes, repetitive inspections for cracking of the balance weight brackets of the elevator trim tabs, and replacement of any cracked bracket with a new or reworked bracket that conforms to the approved design standard. This AD also provides for an optional terminating action for the repetitive inspections. This AD is prompted by reports indicating that balance weight brackets have been found cracked on both the left and right elevator trim tabs. We are issuing this AD to prevent failure of the balance weight bracket for the elevator trim tab, which could cause loss of the balance weight. This could result in incorrect trim during takeoff and landing, and reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/02/25/05-3268/airworthiness-directives-short-brothers-model-sd3-60-series-airplanes)
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