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NTSB Report
September 1, 2023 · Ayres S2R-T34 · N61373
Three Rocks, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 1, 2023
Injury Outcomes
No injuries (1 uninjured)
Location
Three Rocks, CA
Aircraft
Ayres S2R-T34 (1996)
Tail Number
N61373
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR23LA333
The pilot reported that the airplane’s hopper had been loaded with 300 gallons of water. During the takeoff roll, the airplane did not accelerate as expected so he initiated the emergency dump procedure to jettison the water. The airplane became airborne and the pilot maintained a high angle of attack to climb over trees near the end of the runway. The airplane subsequently experienced an aerodynamic stall, descended into an adjacent field, and impacted terrain. The left wing, right aileron, and elevator sustained substantial damage. The pilot said he suspected the airplane performance was affected by density altitude and he reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation.
NTSB Probable Cause
The airplane’s exceedance of the critical angle of attack, resulting in an aerodynamic stall and impact with terrain.
Full Narrative
The pilot reported that the airplane’s hopper had been loaded with 300 gallons of water. During the takeoff roll, the airplane did not accelerate as expected so he initiated the emergency dump procedure to jettison the water. The airplane became airborne and the pilot maintained a high angle of attack to climb over trees near the end of the runway. The airplane subsequently experienced an aerodynamic stall, descended into an adjacent field, and impacted terrain. The left wing, right aileron, and elevator sustained substantial damage. The pilot said he suspected the airplane performance was affected by density altitude and he reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation.
Flight
Event TypeAccident
Event Time19:15 PDT
Nearest AirportNone - Private Farm Strip (0nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAyres S2R-T34
Tail NumberN61373
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeTurboprop
Engine DetailsPratt & Whitney · PT6-34 · Turboprop · 750
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 42 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 15 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point32 F
Altimeter29.63 inHg
Observation Time18:56
Weather SourceWFAC