| AD Number | 72-03-07 | Status | Active |
| Effective Date | February 09, 1972 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-1391 |
| Product Type | ["Aircraft"] | Product Subtype | ["Small Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Cessna Aircraft Company |
| Model(s) | 310 310A 310B 310C 310D 310E 310F 310G 310H 310I 310J 310J-1 310K 310L 310N 310P 310Q 310R 340 340A 401 401A 401B 402 402A 402B 402C 414 414A 421 421A 421B 421C |
72-03-07 CESSNA: Amdt. 39-1391. Applies to Models 310 (Serial Numbers 310Q0074 through 310Q0425, except 310Q0261, 0271, 0279, 0402, 0409, 0411, 0416, 0420, 0424); Models 340 (Serial Numbers 340-0001 through 340-0009, except 340-0005); Models 401 (Serial Numbers 401B0029 through 401B0204); Models 402 (Serial Numbers 402B0007 through 402B0201); Models 414 (Serial Numbers 414-0052 through 414-0173, except 414-0152, 0153, 0168, 0172); and Models 421 (Serial Numbers 421B0001 through 421B0209, except 421B0144, 0201, 0205, 0208); and all other 300 and 400 series airplanes which may have the original barrel assemblies replaced with new or used assemblies shipped by the manufacturer between January 1, 1970, and December 15, 1971.
Compliance: Required as indicated, unless already accomplished.
To prevent landing gear failure accomplish the following in accordance with Cessna Service Letter ME71-28 dated December 24, 1971, and Supplement No. 1 dated January 28, 1972, or any equivalent methods approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region:
A) Within the next 5 hours' time in service after the effective date of this AD, visually inspect barrel assemblies of the main landing gear upper struts for hydraulic leaks and surface cracks. If such discrepancies are noted, prior to further flight, replace the appropriate barrel assemblies.
B) To accomplish the inspection required by Paragraph A the airplane may be flown in accordance with FAR 21.197 to a base where the inspection may be performed.
C) Within the next 25 hours' time in service after the effective date of this AD, conduct chemical tests to determine if barrel assemblies of the main landing gear upper struts are composed of dissimilar or incorrect metals. If such discrepancies are noted, prior to further flight, replace with appropriate and correct barrel assemblies.
D) Report all defects found in complying with this AD. Such reports must be made in writing and sent to Chief, Engineering and Manufacturing Branch, FAA, Central Region, and should include such items as aircraft serial number, total time in service and nature of defect. (Report approved by the Bureau of the Budget under BOB No. 04-R0174.)
This amendment becomes effective February 9, 1972.