Summary
This document proposes to revise an earlier proposed airworthiness directive (AD) that would have superseded Airworthiness Directive (AD) 82-20-04 R1, which currently requires repetitively inspecting the main landing gear (MLG) hinge fitting, support angles, and attachment bolts on British Aerospace (Operations) Limited HP.137 Mk1 and Jetstream series 200 airplanes, and repairing or replacing any part that is cracked beyond certain limits. The proposed AD would have required installing improved design MLG fittings, as terminating action for the repetitive inspections that are currently required by AD 82-20- 04 R1, and would have incorporated the Jetstream Model 3101 airplanes into the Applicability of the AD. The actions specified in the proposed AD are intended to prevent structural failure of the MLG caused by fatigue cracking, which could result in loss of control of the airplane during landing operations. The Federal Aviation Administration (FAA) inadvertently proposed eliminating repetitive inspections of both the MLG fitting and MLG support angles in the proposal. Only the inspections of the MLG fitting should be eliminated; the inspections of the MLG support angle are still valid. Since adding these inspections goes beyond the scope of what was originally proposed, the FAA has determined that the comment period for the proposal should be reopened and the public should have additional time to comment.