AD/PA-31/1 - Nose Landing Gear Idler Link Assembly - Modification - CANCELLED

This document formally cancels an obsolete aviation safety rule (Airworthiness Directive AD/PA-31/1) that applied to Piper PA-31 series aircraft.

What the original rule required: Owners had to modify the nose landing gear idler link assembly — a specific component of the front landing gear — following manufacturer instructions (Piper Service Letter No. 492 Part II).

Why it is being cancelled: The original rule required all modifications to be completed by January 1968. Since all affected aircraft would have been modified decades ago, the rule no longer serves any safety purpose and has become redundant.

Who this affects: Owners and operators of Piper PA-31 aeroplanes. In practice, this cancellation simply removes a technical requirement that everyone already complied with long ago, simplifying maintenance records.