AD 66-28-05

66-28-05 PILATUS: Amdt. 39-306, Part 39, Federal Register November 9, 1966. Applies to Model PC-6 Series Airplanes. Compliance required as indicated. To prevent failure of the rudder pedal support, accomplish the following: (a) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 50 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection, until modified in accordance with (b)(3), visually inspect the guide tube welding seams of rudder pedal support, P/N 6232.196 for cracks, using a lamp and mirror. (b) If a crack is found during an inspection required by (a), before further flight, accomplish one of the following or an FAA-approved equivalent - (1) Repair the part in an FAA-approved manner; (2) Replace the part with an unmodified part of the same part number; or, (3) Replace the part with one modified or one repaired and reinforcedin accordance with Swiss Office Federal de l'Air-approved Pilatus Service Bulletin No. 65. This directive effective November 19, 1966.