AD 64-08-04

64-08-04 UNIVERSAL: Amdt. 712 Part 507 Federal Register April 8, 1964. Applies to All Models Temco D-16 and D-16A Aircraft. Compliance required within 50 hours' time in service after the effective date of this AD. As a result of instances of cracking of nose gear support braces (Navion P/N 145-34161) and channel drag brace supports (Navion P/N 145-34204) installed on D-16 and D-16A aircraft accomplish the following: (a) On D-16 aircraft, visually inspect Navion P/N 145-34161 for cracks. If cracks are found, replace cracked part with a new part of the same number. In all cases, add Temco P/N 5531A cap nose gear drag brace or FAA approved equivalent, and replace Navion P/N 145-34204 with Universal P/N TN 5980A or FAA approved equivalent. Perform this rework in accordance with Temco Drawing TN 5505 or FAA approved equivalent. (b) On D-16A aircraft, replace Navion P/N 145-34204 with Universal P/N TN 5980A or FAA approved equivalent. (Universal Aircraft Service Bulletin No. 14 covers the same subject.) This directive effective May 11, 1964.