74-25-08 CONSOLIDATED AERONAUTICS, INC: Amendment 39-2036. Applies to Colonial Model C-1 and C-2 airplanes certificated in all categories.
Compliance required within the next 10 hours' time in service after the effective date of this AD, unless already accomplished within the preceding 90 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection.
To prevent operation with cracked or failed wing rear spar fittings or wing rear spar fittings with distorted bolt holes, accomplish the following:
(1) Remove the cover of the compartment containing the aileron control system, located behind the fuel tank area, and visually inspect the wing rear spar left and right fore fittings, P/Ns 3200-151L and 3200-151R, for cracks, failures or distorted bolt holes.
(2) Remove the baggage compartment and visually inspect the wing rear spar left and right aft fittings, P/N's 3200-148L and 3200-148R, for cracks, failures or distorted bolt holes.
(3) Replace cracked or failed fittings or fittings with distorted bolt holes prior to further flight.
This amendment becomes effective December 18, 1974.