- Date
- July 24, 2021, 13:00 local (19:00 UTC)
- Place
- Rock Springs, WY · airport
- Injuries
- 4 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N419TTCessna 340
- Defining event
- Takeoff-rejected takeoff: Aerodynamic stall/spin
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- FAA
- Case key
- 103877
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot’s improper pitch control during takeoff which resulted in an aerodynamic stall and subsequent hard landing
Findings · 5
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
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.
Aircraft
- Registration
- N419TT
- Reported as
- Cessna 340
- Category
- Airplane
- Serial number
- 340-0091
- Built
- 1972
- Airframe hours
- 5,634
- Engines
- Cont Motor TSIO-520 - NB, 335 horsepower, reciprocatingCont Motor TSIO-520 - NB, 335 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · May 17, 2021
- Departed
- KRKS · Rock Springs, WY
- Destination
- KOSH · Oshkosh, WI
- Airport
- KRKS · Southwest Wyoming Regional Airport, runway 09, 10,000 × 150 ft, asphalt
- Equipment
- Unknown
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 56
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- July 8, 2021
- Seat
- Left
- Flight hours
- 1,212 total · 189 in this make and model · 1,085 as pilot in command · 17 in the last 90 days · 6 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 82 °F, dew point 27 °F
- Altimeter
- 30.32 inHg
- Observed at
- KRKS, 1 nm away
- METAR
- METAR KRKS 241854Z AUTO 00000KT 10SM CLR 28/M03 A3032 RMK AO2
Docket · 3
The files NTSB released with the investigation on May 19, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.5 MB in all.