# Proposed AD 98-SW-71-AD: Robinson Model R44 Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-13-11
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 22, 1999, 64 FR 13732
- Comments due: May 21, 1999
- Became: [AD 99-13-11](https://openairdocs.org/ad/99-13-11)
- Docket: 98-SW-71-AD
- FR document: 99-6557
- Official PDF: https://openairdocs.org/files/sha256/2a/52/2a5287a4928dbf8f6adefad0062a14026d7f37983df0a6593d928c19bc0f466b (from https://www.govinfo.gov/content/pkg/FR-1999-03-22/pdf/99-6557.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/03/22/99-6557/airworthiness-directives-robinson-model-r44-helicopters
- Page: https://openairdocs.org/proposed/98-SW-71-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) applicable to Robinson Model R44 helicopters. The AD would require installing a shutoff clamp on the auxiliary fuel tank sump drain tube (drain tube) and a placard decal to alert operators as to the proper use of the auxiliary fuel tank drain. This proposal is prompted by a report of fuel leaking from a drain tube opening in the area of the horizontal and vertical firewalls. The actions specified by the proposed AD are intended to prevent fuel leaks from the drain tube that could cause a fire and subsequent loss of control of the helicopter.

## Notices in this docket

- Mar 22, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-6557, comments due May 21, 1999 (https://www.federalregister.gov/documents/1999/03/22/99-6557/airworthiness-directives-robinson-model-r44-helicopters)

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