AD 73-07-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat Aircraft Inc | S-2A | Airworthiness Directives; Pitts Model S-2A Series Airplanes |
Unsafe Condition
Cracks in the horizontal stabilizer support tubes (P/N 2-2123 and 2-2100-109) and front/rear tubes (P/N 2-3100) near AN3 bolt holes could lead to structural failure.
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Required Actions
Inspect horizontal stabilizer and support tubes for cracks following Pitts Service Bulletin No. 6 or AD 72-19-05 steps. Clean tubes with solvent, dye-check near bolt holes, and repair cracks via approved methods. Repeat inspections every 50 hours time in service until modified per Service Bulletin 7.
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Compliance Time
Within the next 5 hours time in service after the effective date of this AD
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Affected Aircraft
Aviat Aircraft Inc Model S-2A, serial numbers 2001 through 2044
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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