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NTSB Report
December 13, 2025 · Porto Risen SV · N817D
Carson City, NV
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 13, 2025
Injury Outcomes
No injuries (1 uninjured)
Location
Carson City, NV
Aircraft
Porto Risen SV (2025)
Tail Number
N817D
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR26LA057
The pilot was conducting a maintenance test flight and had conducted several landings, all of which were uneventful. During the final approach to land, he thought he had lowered the landing gear but did not confirm whether the gear-down advisory lights were illuminated. He subsequently landed the airplane with the landing gear retracted, which resulted in substantial damage to the lower fuselage composite structure. The pilot reported no pre-accident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot added that the LED gear-down advisory lights were not very bright and that sunlight made them difficult to see.
NTSB Probable Cause
Aircraft-Aircraft systems-Landing gear system-Gear extension and retract sys-Not used/operated
Full Narrative
The pilot was conducting a maintenance test flight and had conducted several landings, all of which were uneventful. During the final approach to land, he thought he had lowered the landing gear but did not confirm whether the gear-down advisory lights were illuminated. He subsequently landed the airplane with the landing gear retracted, which resulted in substantial damage to the lower fuselage composite structure. The pilot reported no pre-accident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot added that the LED gear-down advisory lights were not very bright and that sunlight made them difficult to see.
Flight
Event TypeAccident
Event Time10:21 PST
Nearest AirportCarson City (0.1nm N)
Runway09/2
Runway Length6101 ft
Runway Width75 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPorto Risen SV
Tail NumberN817D
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · 916 IS · Reciprocating · 160
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 65 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point41 F / 21 F
Altimeter30.41 inHg
Observation Time10:35
Weather SourceWFAC