AD 2024-10-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada Limited | Airworthiness Directives; Bell Textron Canada Limited Helicopters |
| aircraft | Bell | Textron Canada Limited | Airworthiness Directives; Bell Textron Canada Limited Helicopters |
Unsafe Condition
A certain part-numbered fuel system standpipe assembly (standpipe) may have sharp edges at the interval weld joints due to a quality escape during the manufacturing process.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the interior of the standpipe for sharp edges on each internal weld joint. If sharp edges are found, deburr the edges, remove sanding residue, and apply a chemical film to bare metal surfaces. Inspect the harness assembly connectors for mechanical damage and corrosion, and inspect the insulation tubing and wires for cracks and chafing. Replace the harness assembly if damage is found. Perform a fuel quantity gauging system calibration, and if required, replace the harness assembly and repeat the calibration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
Bell Textron Canada Limited Model 407 helicopters, serial numbers 54832 through 54931, 54933 through 54939, and 54942 through 54954, with a certain part-numbered fuel system standpipe assembly installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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