AD 53-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sky Enterprises, Inc. | RC-3 | Airworthiness Directives; Republic Model RC-3 Aircraft |
Unsafe Condition
Severe corrosion of the right and left upper and lower lift strut fittings, fuselage wing lift strut fittings and wing lift strut fittings has been reported. Corrosion may be intergranular in nature, resulting in greater loss of strength than indicated by surface metal loss.
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Required Actions
Inspect and test the specified fittings with a pointed instrument. Cut inspection holes in wing surfaces per Service Bulletin 25, Supplement 2. Replace fittings with severe corrosion; treat those with slight surface corrosion. Cover inspection holes with specified plug buttons.
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Compliance Time
within the next 25 hours of operation but not later than December 1, 1953, and thereafter at each 25-hour period of operation or every 6 months, whichever occurs first
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Affected Aircraft
Republic Model RC-3 Aircraft and Model UC-1 aircraft (per TCDS A6EA note 3)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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