Fuel — Fuel Tank Connection Hoses — Replacement

Published: Sep 3, 2019
Effective: Sep 17, 2019
Deadline: Sep 17, 2019

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators must remove and replace all affected fuel tank connection hoses within 100 flight hours or 4 months from the effective date of 2019-09-17, whichever comes first. If damaged hoses are found during removal, fuel tank chambers must be inspected and any detached rubber material removed. Installation of affected hoses is prohibited from the effective date onward.

Summary

EASA Airworthiness Directive 2019-0218 is an airworthiness directive addressing fuel tank connection hoses on Diamond Aircraft Industries GmbH DA 42, DA 42 M, DA 42 NG, and DA 42 M-NG aeroplanes. It targets specific fuel tank connection hoses with part number D4D-2817-10-70 that were found to be defective due to dissolved rubber components. The directive mandates replacement of these affected hoses to ensure continued safe operation of the aircraft.

What changed

This new airworthiness directive introduces mandatory removal and replacement of affected fuel tank connection hoses identified by specific part numbers and serial numbers. It also requires inspection of fuel tank chambers if damaged hoses are found during removal, and prohibits installation of any affected hoses from the effective date onward.

Why it matters

This directive is critical for aviation professionals as it addresses a safety risk of fuel starvation caused by deteriorated fuel tank hoses, which could lead to reduced aircraft control. Operators and maintenance organizations must comply to prevent potential in-flight fuel flow restrictions and ensure regulatory compliance with continuing airworthiness requirements.

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