AD 82-16-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Helio Aircraft LLC | H-250 | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
| aircraft | Helio Aircraft LLC | H-295 (USAF U10D) | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
| aircraft | Helio Aircraft LLC | H-391 (USAF UL-24) | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
| aircraft | Helio Aircraft LLC | H-391B | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
| aircraft | Helio Aircraft LLC | H-395 (USAF L-28A or U-10B) | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
| aircraft | Helio Aircraft LLC | H-395A | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
| aircraft | Helio Aircraft LLC | HT-295 | Airworthiness Directives; Helio Models H-250, H-295, HT-295, H-391, H-391B, H-395 and H-395A Airplanes |
Unsafe Condition
Cracks or corrosion in the lower left and right main spar steel carry-thru fitting (P/N 391-030-4072) or welds on the lower horizontal tube of the wing spar carry-thru assembly could lead to structural failure of the wing spar carry-thru assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Gamma ray inspect the lower left and right main spar steel carry-thru fitting for cracks or corrosion every 100 hours time-in-service. Dye penetrant inspect the lower horizontal tube welds and adjacent areas every 100 hours time-in-service. Install reinforcement kits per STC SA1590CE or SA1728CE by August 1, 1984. Replace the carry-thru assembly if cracks or excessive corrosion are found during inspections.
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Compliance Time
within the next 10 hours' time in service, on all land planes with 3000 or more hours' time in service, or upon accumulation of 3000 hours' time in service; and on all seaplanes with 1500 or more hours' time in service, or on airplanes operated in both landplane and seaplane configurations with 3000 or more equivalent landplane hours' time in service or upon accumulation of 3000 equivalent landplane hours' time in service, and thereafter at intervals not to exceed 100 hours time-in-service. For reinforcement installation, on or before August 1, 1984. For inspections after reinforcement, on or before 1500 hours time in service after installation and each 1500 hours thereafter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Helio Models H-250, H-295 (except S/N 1436, 1443-1479), HT-295, H-391, H-391B, H-395, H-395A with specific wing spar carry-thru assemblies (P/N 391-030-401 or 295-030-401) not modified by STCs SA1590CE or SA1728CE.
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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