75-08-07 ROCKWELL INTERNATIONAL CORP., GENERAL AVIATION DIVISION: Amendment 39-2160. Applies to Model 690A airplanes, Serial Numbers 11100 through 11208.
Compliance required within 25 hours' time in service after the effective date of this AD, unless otherwise accomplished.
To minimize the possibility of bleed air line failure and resultant leakage, accomplish the following:
Modify Model 690A airplanes in accordance with Rockwell International, General Aviation Division, Service Bulletin Number 147 dated November 27, 1974, except that the requirements of Paragraphs "s" and "u" may be ignored and the first item under "SUPPLY DATA" may be deleted, or later approved revision, or in accordance with an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration.
This amendment becomes effective on April 10, 1975.