AD 69-14-01

69-14-01 CESSNA: Amdt. 39-793 applies to Models 310G, H, I, J, K, L, N, P, and T310P, Serial Numbers 310G0001 through 310P0166 except 310P0079, 310P0121, 310P0135, 310P0154, 310P0155; All E310J and E310H Aircraft; All 320A, B, C, D, E, F Aircraft; Models 401, 401A, Serial Numbers 401-0001 through 401A0078 except 401A0073; Models 402, 402A, Serial Numbers 402-0001 through 402A0063 except 402A0062; All 411, 411A Aircraft; Models 421, 421A, Serial Numbers 421-0001 through 421A0099 except 421A0041, 421A0077, 421A0093.

Compliance: Required as indicated, unless already accomplished.

To prevent fuel starvation during high angle descent, accomplish the following:

A) Effective immediately, operation of the airplane with less than 10 gallons of fuel in each main tank is prohibited.

B) Prior to further flight on all models listed above, install a placard in full view of the pilot as near as possible to the main fuel quantity indicator with the following wording: "OPERATION WITH LESS THAN 10 GALLONS OF FUEL IN EACH MAIN TANK IS PROHIBITED."

C) Prior to further flight on all models listed above, install a placard in full view of the pilot as near as possible to the manifold pressure gauge, with the following wording: "MAINTAIN POWER WITHIN GREEN ARCS DURING DESCENT."

D) Prior to further flight on Cessna Models 310L, N, P; T310P; 320E, F; 401, 401A; 402, 402A; 411, 411A; 421 and 421A install a placard in full view of the pilot as near as possible to the airspeed indicator with the following wording: "MAXIMUM SPEED WITH 15 DEGREES TO FULL FLAPS SHALL NOT EXCEED 140 MPH."

E) Prior to further flight on Cessna Models 310G, 310H, and 320A, install a placard in full view of the pilot as near as possible to the flap position indicator with the following wording: "FLAP POSITION SHALL NOT EXCEED 35 DEGREES."

F) On or before January 1, 1970, unless already accomplished, modify fuel system either by the installation of a pump in each main wing tank and all related changes in accordance with Cessna Service Letter ME69-16, dated June 27, 1969, or by the accomplishment of any equivalent method approved by the Chief, Engineering & Manufacturing Branch, Federal Aviation Administration, Central Region.

G) Upon accomplishment of the modification required by Paragraph F, compliance with the provisions of Paragraphs A, B, C, D, and E is no longer required.

NOTE: The operator may make and install the above placards. Minimum 1/8 inch high letters must be used.

Effective June 4, 1969.

Revised July 11, 1969.