AD 98-16-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 180 | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180A | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180B | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180C | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180D | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180E | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180F | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180G | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180H | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
| aircraft | Cessna Aircraft Company | 180J | Airworthiness Directives; Cessna Models 180, 182, and 185 Series Airplanes |
Unsafe Condition
Failure of the wing due to the absence of an angle stiffener along the lower spar splice between Wing Station 90 and 110, which could cause loss of control of the airplane during flight.
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Required Actions
Inspect inside the left and right wings between Wing Station 90 and 110 for an angle stiffener. If not installed, install a stainless steel reinforcement strap along the lower spar at Wing Station 100.50. Comply with Air Research Technology SB-1-96, Issue 1.
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Compliance Time
within the next 50 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished
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Affected Aircraft
Cessna Models 180, 182, and 185 series airplanes with wing extension STC SA00276NY or STA SA93-136, all serial numbers.
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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