# Proposed AD 96-NM-122-AD: Short Brothers Model SD3-60 SHERPA Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 96-21-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 12, 1996, 61 FR 36667
- Comments due: August 29, 1996
- Became: [AD 96-21-10](https://openairdocs.org/ad/96-21-10)
- Docket: 96-NM-122-AD
- FR document: 96-17740
- Official PDF: https://openairdocs.org/files/sha256/4c/e6/4ce67b9121ce666c3053a37c1587e63e78c7cd91121d05b6b7ecac30aa35f507 (from https://www.govinfo.gov/content/pkg/FR-1996-07-12/pdf/96-17740.pdf)
- Federal Register: https://www.federalregister.gov/documents/1996/07/12/96-17740/airworthiness-directives-short-brothers-model-sd3-60-sherpa-series-airplanes
- Page: https://openairdocs.org/proposed/96-NM-122-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Short Brothers Model SD3-60 SHERPA series airplanes. This proposal would require revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This proposal is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by the proposed AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.

## Notices in this docket

- Jul 12, 1996: Notice of proposed rulemaking (NPRM). (first notice), FR document 96-17740, comments due Aug 29, 1996 (https://www.federalregister.gov/documents/1996/07/12/96-17740/airworthiness-directives-short-brothers-model-sd3-60-sherpa-series-airplanes)

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