AD/CESSNA 400/74 - Fuel Pressure Switch Line - Inspection and Modification - CANCELLED

This document cancels an old aviation safety rule that required owners of Cessna 400 series aircraft to inspect and modify the support bracket for the fuel pressure switch line.

What it means:

• No action required: Aircraft owners and operators no longer need to comply with this specific directive (AD/CESSNA 400/74).
• Why: The original rule was issued in 1980 to fix a potential safety issue. Because all affected aircraft have now had the required modification done, the rule is obsolete.
• Effective date: The cancellation took effect on 25 September 2008.

This is routine housekeeping by the Civil Aviation Safety Authority (CASA) to remove outdated requirements from the rulebooks.