Fuel – Engine Fuel Supply Hoses – Inspection / Replacement
Superseded. Comply with 2022-0087, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2019-0092
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of EC 225 LP helicopters must inspect the affected fuel supply hose within 110 flight hours or 6 months after 10 May 2019 if classified as Group 1. Any discrepancies found must be corrected before the next flight. Additionally, all Group 1 and Group 2 helicopters must replace the affected hose with the improved part within 1,200 flight hours or 36 months from the AD's effective date of 16 July 2021. Installation of affected parts is restricted according to the AD's detailed conditions.
Summary
EASA Airworthiness Directive 2021-0156 is an airworthiness directive issued for Airbus Helicopters EC 225 LP models concerning the left-hand side engine fuel supply hose, part number 704A34416087. It mandates inspection and replacement of this fuel supply hose to prevent power loss due to fuel flow restriction caused by a twisted hose. The directive applies to all serial numbers of EC 225 LP helicopters and introduces requirements for inspection, corrective actions, and replacement with an improved part.
What changed
EASA Airworthiness Directive 2021-0156 supersedes the previous AD 2019-0092 and retains its inspection requirements while introducing a mandatory replacement of the affected fuel supply hose with an improved part, part number 704A34416101. It also excludes helicopters equipped with the improved part from inspection applicability and updates installation instructions to prevent improper installation.
Why it matters
This directive is critical for aviation professionals because it addresses a safety risk where a twisted fuel supply hose can cause loss of engine power, potentially reducing helicopter control. Operators and maintenance teams must ensure compliance to maintain airworthiness and prevent in-flight engine power loss. It also affects maintenance procedures and parts installation standards for the EC 225 LP fleet.
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