AD 85-01-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat Aircraft Inc | S-2A | Airworthiness Directives; Pitts Model S-2A Series Airplanes |
Unsafe Condition
Cracks in the welds attaching P/N 2-5100-12 stick housings to P/N 2-5100-11 tube in the cockpit control tube assembly could cause loss of normal aileron and elevator control.
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Required Actions
Visually inspect the cockpit control tube assembly with a 10 power glass for cracks near the welds. If cracks are found, weld shut the cracks and install P/N 2-5100-20 gussets at both fore and aft stick housing locations per Pitts Service Letter No. 5, Revision B. If no cracks, install the gussets as specified. Installing P/N 2-5100-19 gussets per Pitts Service Letter No. 5, Revision A also complies. Equivalent methods may be approved by the Denver Aircraft Certification Office.
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Compliance Time
within the next 25 hours time-in-service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Aviat Aircraft Inc Model S-2A serial numbers 2001 through 2105
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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