AD/CESSNA 550/3 - Cabin Door Frame - Inspection, Modification and Replacement - CANCELLED

What this does: This document officially cancels a previous aviation safety rule that required owners of specific Cessna aircraft to inspect and repair cabin door frames.

Who it affects: Owners and operators of Cessna 550 (Citation II) series aeroplanes.

Why it matters: The original directive (issued in 1982) mandated inspections and modifications to prevent potential failures of the cabin door frame. Because all aircraft affected by the original safety concern have long since been modified or repaired, that old rule is now redundant. This cancellation removes the compliance burden, meaning operators no longer need to perform these specific inspections or keep records for this particular directive.

Key point: This is administrative housekeeping—clearing outdated safety requirements from the aviation rulebooks to avoid confusion.