AD 72-03-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 310 | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310A | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310B | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310C | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310D | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310E | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310F | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310G | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310H | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
| aircraft | Cessna Aircraft Company | 310I | Airworthiness Directives; CESSNA Model 310, 340, 401, 402, 414, 421 Airplanes |
Unsafe Condition
Landing gear failure due to hydraulic leaks, surface cracks, or dissimilar/incorrect metals in the main landing gear upper strut barrel assemblies.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 5 hours' time in service after the AD's effective date, visually inspect barrel assemblies for hydraulic leaks and surface cracks. If discrepancies exist, replace the assemblies before further flight. Within 25 hours' time in service after the effective date, conduct chemical tests to check for dissimilar or incorrect metals in the barrel assemblies. Replace assemblies with correct ones if discrepancies are found. Report all defects to the FAA as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 5 hours' time in service after the effective date of this AD (for inspection) and within the next 25 hours' time in service after the effective date (for chemical tests).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Models 310 (Serial Numbers 310Q0074 through 310Q0425, except listed exceptions), 340 (Serial Numbers 340-0001 through 340-0009 except 340-0005), 401 (Serial Numbers 401B0029 through 401B0204), 402 (Serial Numbers 402B0007 through 402B0201), 414 (Serial Numbers 414-0052 through 414-0173 except listed exceptions), 421 (Serial Numbers 421B0001 through 421B0209 except listed exceptions), and other 300/400 series airplanes with main landing gear barrel assemblies replaced between January 1, 1970, and December 15, 1971.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.