# Airworthiness Directives; Short Brothers Model SD3-60 SHERPA Series Airplanes
> **Rule** · Final rule. · Published 2004-06-29 · Effective 2004-08-03 · 69 FR 38826
## Document
- **Document number:** 04-14572
- **Category:** airworthiness
- **Manufacturer:** Short Brothers Model SD3-60 SHERPA Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 38826
- **Publication date:** 2004-06-29
- **Effective date:** 2004-08-03
- **FAA docket:** Docket No. 2003-NM-200-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Short Brothers Model SD3-60 SHERPA series airplanes, that requires repetitive inspections and torque tests for discrepancies of certain bolts and rivets; and related investigative and corrective actions. This action is necessary to detect and correct loose bolts that attach the vertical stabilizer to the horizontal stabilizer, and pulled or loose rivets in the upper shear angles, which could result in reduced structural integrity of the vertical stabilizer. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/06/29/04-14572/airworthiness-directives-short-brothers-model-sd3-60-sherpa-series-airplanes)
---
*AI Analytics · CC0 1.0*