75-06-08 GRUMMAN AMERICAN AVIATION CORPORATION: Amendment 39- 2124. Applies to G-1159 airplanes certificated in all categories.
Compliance required within the next 150 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent possible loss of all DC and AC power, connect the battery switch ground leads to separate studs at the center overhead panel in accordance with Grumman ASC 188 or in an equivalent manner approved by Chief, Engineering and Manufacturing Branch, Southern Region, Atlanta, Georgia.
This amendment becomes effective March 18, 1975.