70-14-06: Fire Wall To Compressor Seal

70-14-06 BELL: Amendment 39-1029. Applies to Model 206A Helicopters, S/N 4 thru 448, 460 thru 464, 467, 469 thru 473 and 475 thru 477, certificated in all categories. Compliance required not later than 300 hours time in service after the effective date of this Airworthiness Directive, unless already accomplished. To relieve engine compressor flange loads, replace existing fire-wall-to-compressor seal with a new improved firewall seal kit, Bell Part No. 206-704-026-1, in accordance with applicable paragraphs of Bell Service Letter 206A-142, dated November 5, 1969, or later FAA approved revision. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. This amendment becomes effective August 16, 1970.