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NTSB Report
July 24, 2021 · Cessna 340 · N419TT
Rock Springs, WY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 24, 2021
Injury Outcomes
No injuries (4 uninjured)
Location
Rock Springs, WY
Aircraft
Cessna 340 (1972)
Tail Number
N419TT
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR21LA345
The pilot reported that, before takeoff he calculated the density altitude to be 9,700 ft. During takeoff, shortly after rotation, he “felt” that the airplane was slightly nose high and the stall warning horn aural alert activated, and the airplane began to shudder. The pilot then aborted the takeoff after he found it difficult to nose the airplane down to attain airspeed. About 10 ft above the ground, the airplane aerodynamically stalled and landed tail first then a hard bounce on the main landing gear. Subsequently, the right wing sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s improper pitch control during takeoff which resulted in an aerodynamic stall and subsequent hard landing
Full Narrative
The pilot reported that, before takeoff he calculated the density altitude to be 9,700 ft. During takeoff, shortly after rotation, he “felt” that the airplane was slightly nose high and the stall warning horn aural alert activated, and the airplane began to shudder. The pilot then aborted the takeoff after he found it difficult to nose the airplane down to attain airspeed. About 10 ft above the ground, the airplane aerodynamically stalled and landed tail first then a hard bounce on the main landing gear. Subsequently, the right wing sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time13:00 MDT
Nearest AirportSouthwest Wyoming Regional Air (0nm)
Runway09
Runway Length10000 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 340
Tail NumberN419TT
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsCont Motor · TSIO-520 - NB · Reciprocating · 335 | Cont Motor · TSIO-520 - NB · Reciprocating · 335
Seats5
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 56 · Third Class · None
Crew 2None
Crew 3None
Crew 4None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point27 F
Altimeter30.32 inHg
Observation Time12:54
Weather SourcePILO