AD 2008-13-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Mystere-Falcon 20-C5 | Airworthiness Directives; Dassault Model Mystere-Falcon 20-C5, 20-D5, and 20-E5 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Model Mystere-Falcon 20-C5, 20-D5, and 20-E5 Airplanes |
Unsafe Condition
Collapsed wing anti-ice flexible hose due to internal ply separation, leading to insufficient anti-icing not detected by the monitoring system. This can result in undetected excessive ice build-up on the wings, which could interfere with controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect to determine whether any wing anti-ice flexible hose having part number (P/N) FAL1006 or P/N ARM224A is installed. Remove any hose with these part numbers and install a new hose having ESPA (brand) P/N 60503104509, in accordance with Dassault Service Bulletin F20-775.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 7 months after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Dassault Model Mystere-Falcon 20-C5, 20-D5, and 20-E5 airplanes, all serial numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.