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NTSB Report
August 2, 2025 · Aviat Aircraft A-1B · N900HY
Chisana, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 2, 2025
Injury Outcomes
No injuries (2 uninjured)
Location
Chisana, AK
Aircraft
Aviat Aircraft A-1B (2006)
Tail Number
N900HY
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC25LA083
The pilot reported that he was flying low-level over various remote gravel bars looking for a suitable one to land on. During a low pass over a gravel bar, the airplane’s tailwheel impacted an area of rough, uneven terrain, which pivoted the nose of the airplane down, resulting in a hard, inadvertent landing. The main landing gear wheels subsequently impacted a 3 ft high gravel berm, and the main landing gear collapsed resulting in substantial damage to the fuselage and left wing lift struts. A postaccident examination of the landing gear by the NTSB investigator-in-charge revealed all fractures in the landing gear were from overload forces from the hard landing.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained
Full Narrative
The pilot reported that he was flying low-level over various remote gravel bars looking for a suitable one to land on. During a low pass over a gravel bar, the airplane’s tailwheel impacted an area of rough, uneven terrain, which pivoted the nose of the airplane down, resulting in a hard, inadvertent landing. The main landing gear wheels subsequently impacted a 3 ft high gravel berm, and the main landing gear collapsed resulting in substantial damage to the fuselage and left wing lift struts. A postaccident examination of the landing gear by the NTSB investigator-in-charge revealed all fractures in the landing gear were from overload forces from the hard landing.
Flight
Event TypeAccident
Event Time11:00 AKDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedUnknown
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAviat Aircraft A-1B
Tail NumberN900HY
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1D6 · Reciprocating · 200
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 31 · Third Class · None
Crew 2None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 50 F
Altimeter30.08 inHg
Observation Time10:53
Weather SourceWFAC