# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145 Series Airplanes
> **Rule** · Final rule. · Published 1998-05-20 · Effective 1998-06-24 · 63 FR 27676
## Document
- **Document number:** 98-13313
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 27676
- **Publication date:** 1998-05-20
- **Effective date:** 1998-06-24
- **FAA docket:** Docket No. 98-NM-34-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain EMBRAER Model EMB-145 series airplanes, that requires a one-time visual inspection of the pilot valve harness tubes for bulges and cracks, cleaning the tubes, applying sealant at the tube end opening, and replacing any discrepant tubes with serviceable tubes. This amendment also requires replacement of the pilot valve harness tubes and vent valve tubes with new tubes having improved anti- corrosion protection. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent cracking of the pilot valve harness tubes, which could allow fuel to enter the conduit and leak overboard; this condition could result in increased risk of a fuel tank explosion and fire.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/05/20/98-13313/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-145-series-airplanes)
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