76-22-01 BELLANCA AIRCRAFT CORPORATION: Amendment 39-2753. Applies to:
MODEL
SERIAL NUMBER
7 ECA
1126-76 thru 1173-76
7GCAA
324-76 thru 332-76
7GCBC
887-76 thru 942-76
7KCAB
551-76 thru 584-76
8KCAB
219-76 thru 265-76
8GCBC
188-76 thru 228-76
And all previous serial numbered airplanes in which the adjustable front seat has been installed per Bellanca Kit #252.
Compliance required within the next 10 hours' time in service after the effective date of this AD, unless already accomplished.
To detect permanent deformation and/or cracks in the lower frame side tubes on the adjustable front seat, accomplish the following:
a. Inspect the left and right side lower seat frame side tubes for evidence of cracks and/or permanent deformation in an area just forward of the side brace and side tube junction. A permanent upward bow in the side tube at this junction is evidence of permanent deformation. The area can best be inspected after removal of theseat cushion.
b. If cracks and/or permanent deformation are found, repair per AC 43.13-1 and install Bellanca Kit #253, or replace the seat frame with a new reinforced seat frame P/N 7-1513, before further flight.
c. If cracks and/or permanent deformation are not found, install Bellanca Kit #253 within the next 20 hours' time in service after the effective date of this AD.
Bellanca Service Letter #C-125 dated May 19, 1976 pertains to this subject.
This amendment becomes effective November 2, 1976.