AD 86-15-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 150 | Airworthiness Directives; Cessna Model 150, 150A, 150B and 150C Airplanes |
| aircraft | Cessna Aircraft Company | 150A | Airworthiness Directives; Cessna Model 150, 150A, 150B and 150C Airplanes |
| aircraft | Cessna Aircraft Company | 150B | Airworthiness Directives; Cessna Model 150, 150A, 150B and 150C Airplanes |
| aircraft | Cessna Aircraft Company | 150C | Airworthiness Directives; Cessna Model 150, 150A, 150B and 150C Airplanes |
Unsafe Condition
Installation of an engine larger in size and/or horsepower than the Continental O-200-A may cause operation outside approved center of gravity limits due to forward cg when modified airplanes are weighed with pilot weight, oil, and unusable fuel.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 25 hours time-in-service after the effective date, weigh the airplane to determine empty weight and cg, calculate cg with pilot weight, add ballast between fuselage stations 70.69 and 76.44 if cg is forward of 32.2, and install placards if weight limits are exceeded. Use specified materials and fasteners for ballast installation.
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Compliance Time
within the next 25 hours time-in-service after the effective date of this AD
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Affected Aircraft
Cessna Model 150 (17001-17999, 59001-59018), 150A (15059019-15059350), 150B (15059351-15059700), 150C (15059701-15060087) with engine modifications larger than Continental O-200-A
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
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