# Airworthiness Directives; British Aerospace Jetstream Model 3101 Airplanes
> **Rule** · Direct final rule; confirmation of effective date. · Published 1998-08-05 · Effective 1998-09-10 · 63 FR 41716
## Document
- **Document number:** 98-20839
- **Category:** airworthiness
- **Manufacturer:** British Aerospace Jetstream Model 3101
- **Type:** Rule
- **Action:** Direct final rule; confirmation of effective date.
- **Citation:** 63 FR 41716
- **Publication date:** 1998-08-05
- **Effective date:** 1998-09-10
- **FAA docket:** Docket No. 98-CE-54-AD
## Abstract

This action confirms the effective date of Airworthiness Directive (AD) 98-12-31, which applies to certain British Aerospace Jetstream Model 3101 airplanes. AD 98-12-31 requires repositioning the fuel cross feed pipes in the lower center fuselage to give an overall clearance of 2 inches when measuring from the bottom of Frame Station 223. This AD was the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified in this AD are intended to prevent the fuel pipe from fracturing during a wheels up landing because of the positioning of the fuel cross feed pipes, which could result in an airplane fire.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/08/05/98-20839/airworthiness-directives-british-aerospace-jetstream-model-3101-airplanes)
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