AD 63-06-01

63-06-01 BEECH: Amdt. 546 Part 507 Federal Register March 21, 1963. Applies to Model 23 Aircraft Serial Numbers M-50 through M-174, M-177, M-182 and M-189 Except Serial Numbers M-79, M-108, M-131, M-132, M-166 and M-172.

Compliance required within the next 25 hours' time in service after the effective date of this AD.

To insure that the door has an adequate number of rivets, accomplish the following:

(a) Inspect the cabin door hinge to determine if rivets are installed through the door along the full length of the hinge. Doors with a minimum of 12 AN 470AD4 or equivalent rivets need not be reworked.

(b) Doors without rivets or with less than 12 rivets as described in (a) must be reworked in accordance with Beech Service Bulletin Model 23 No. 6, to incorporate a minimum of 15 AN 470AD4 rivets or FAA approved equivalent. End rivets must be located 3/8 inch plus or minus 1/8 inch from each end with the remaining rivets equally spaced within plus or minus 1/8 inchin a single row between the end rivets. Minimum edge distance is 2D.

(Beech Service Bulletin Model 23 No. 6 covers this same subject.)

This directive effective March 21, 1963.