EASA AD 2020-0127
Ice and Rain Protection — Wing Anti-Ice Outboard Flexible Hoses — Inspection
Summary
EASA Airworthiness Directive 2020-0127 is an airworthiness directive addressing the inspection of wing anti-ice outboard flexible hoses on Dassault Aviation Falcon 10 aeroplanes. It applies to all serial numbers of Falcon 10 aircraft and focuses on inspecting and replacing damaged wing anti-ice flexible hoses with part number 115S018A315. The directive also introduces a new serviceable hose part number 115S118A319 with a defined life limit.
What Changed
This directive supersedes EASA AD 2019-0040-E and retains its inspection requirements while introducing the improved wing anti-ice flexible hose P/N 115S118A319 as a serviceable replacement. It establishes a life limit of 350 flight hours for the new hose and prohibits installation of the affected hose P/N 115S018A315 on any aircraft from the effective date. The directive also mandates repetitive inspections until the hose reaches the life limit or is replaced.
Why It Matters
This directive is critical for maintaining the safety and performance of the wing anti-ice system on Falcon 10 aircraft, preventing potential loss of anti-ice protection that could reduce aircraft control. Operators and maintenance organizations must ensure compliance to avoid unannounced system failures and ensure continued airworthiness. The introduction of a life limit and prohibition of older hose installation simplifies maintenance planning and enhances safety.
What To Do
Operators of Falcon 10 aeroplanes with affected hoses must perform a detailed inspection within specified flight cycle compliance times before the next flight in icing conditions. If damage exceeds acceptable criteria, the hose must be replaced with a serviceable part before further flight. Repetitive inspections are required until the hose reaches 100 flight cycles or is replaced. Installation of the affected hose P/N 115S018A315 is prohibited from 18 June 2020, the effective date of this directive.
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