78-25-07 CESSNA: Amendment 39-3371. Applies to Models A150M (Serial Numbers A1500654 through A1500734) and A152 (Serial Numbers A1520735 through A1520833) airplanes.
COMPLIANCE: Required as indicated, unless already accomplished.
To assure necessary structural integrity of the vertical fin attachment to the airplane, in accordance with the instructions contained in Cessna Single Engine Service Letter SE78-62, dated October 13, 1978, or later revisions, within the next 25 hours time-in-service after the effective date of this AD, accomplish the following:
A) Replace the two existing Part Number 0431009-3 vertical fin attach brackets with two new Part Number 0431009-3 attach brackets obtained from Cessna.
B) Return the two brackets removed from each airplane to the Cessna factory for metallurgical examination.
C) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.
This amendment becomes effective December 22, 1978.