AD 72-03-07

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AD Number:
72-03-07
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes
Subject:
Landing Gear Failure
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/09/1972
Make:
Cessna Aircraft Company
Model:
310 | 310A | 310B | 310C | 310D | 310E | 310F | 310G | 310H | 310I | 310J | 310J-1 | 310K | 310L | 3...Show more
Product Type:
Aircraft
Product Subtype:
Small Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 72-03-07
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-1391

AD NUMBER:   72-03-07

SUBJECT HEADING:   Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 9, 1972.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
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.

FOOTER: