AD 94-28884

Abstract

This document proposes to supersede Airworthiness Directive (AD) 83-26-05 and AD 86-15-08, which currently require repetitively inspecting the horizontal stabilizer attachment fittings for cracks or looseness on certain de Havilland DHC-6 series airplanes, and, if a cracked or loose part is found, modifying the horizontal stabilizer. The proposed action would incorporate an improved modification that, when incorporated, provides terminating action for the existing AD's. Reports of loose horizontal stabilizer attachment fittings on airplanes with the existing inspection-terminating modification incorporated prompted the proposed action. The actions specified by the proposed AD are intended to prevent separation of the horizontal stabilizer from the airplane caused by a cracked attachment fitting, and subsequent loss of control of the airplane.

Applicability · by US fleet size

• FRANKLIN A 1 tails

Compliance instructions

Required actions, compliance times, parts/serial numbers and methods of compliance are in the Federal Register publication — not paraphrased here. Read AD on Federal Register ↗