COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES GAF N22 and N24 Series Aeroplanes AD/GAF-N22/51 Rudder Pedal Guard Plate 12/85 Applicability: All models N22 and N24. Requirement: Action in accordance with GAF Service Bulletin NMD-27-34. Compliance: Within 100 hours time in service, or at the next scheduled inspection for Maintenance Release issued after 31 December 1985, whichever is the later. Background: Jamming of the rudder pedals at full deflection has been reported. This has happened when the pedals are adjusted at or near fully aft, concurrently with landing on rough terrain, or nose wheel shimmy.