EASA AD CF-2023-51: Fuel Storage — Fuel Drain Quick Disconnect Valve Leakage Following Impact | RegNotify

Airworthiness DirectiveEASA AD CF-2023-51

Fuel Storage — Fuel Drain Quick Disconnect Valve Leakage Following Impact

Published: Jul 17, 2023
Effective: Jul 25, 2023
Deadline: Jul 25, 2023

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

What to do

Operators of affected Bell 505 helicopters must install the split plastic grommet as specified in Bell Alert Service Bulletin 505-21-21. This installation must be completed within six months from the effective date of July 25, 2023, unless already accomplished. Maintenance and compliance teams should follow the approved instructions and document the corrective action accordingly.

Summary

The Airworthiness Directive CF-2023-51 is issued by Transport Canada and applies to Bell Textron Canada Limited model 505 helicopters with specific serial numbers. It addresses a fuel leakage issue from the fuel drain quick disconnect valve following an impact during crash testing. The directive mandates corrective measures to prevent fuel leakage and potential post-impact fire hazards.

What changed

This new Airworthiness Directive introduces a requirement to install a frangible split plastic grommet around the airframe cut out for the sump drain port fitting. This modification prevents the fuel drain quick disconnect valve from catching on the airframe cut out and reduces the risk of valve deformation and fuel leakage after an impact.

Why it matters

This directive is critical for aviation professionals because it mitigates the risk of post-impact fuel leakage that could lead to fire and thermal injuries to occupants. Compliance ensures enhanced safety and reduces the likelihood of damage to the fuel system following an accident, thereby improving occupant evacuation time and overall aircraft safety.

More for Bell 505 (Jet Ranger X)

All 19

Get the next one by email

New ADs and bulletins for Bell 505 (Jet Ranger X) and Textron Canada Limited 505, summarized like this page, every Monday.