GAA19CA281

NTSB accident investigation · Cessna 340 · Carvers, NV · May 3, 2019

Accident · No injuriesData collectionFinal report
Date
May 3, 2019, 15:00 local (22:00 UTC)
Place
Carvers, NV
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N5418MCessna 340
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report March 20, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20190503003859A
Case key
99490

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 failure to accurately assess the available runway for the takeoff, which resulted in impact with a gravel berm.

Findings · 6

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.

Planning/preparation: performance calculationsPersonnel issues › Task performance · PilotCessna 340: 1 caseAll aircraft: 114 casesProbable cause
Aircraft capability: takeoff distanceAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleCessna 340: 1 caseAll aircraft: 67 casesProbable cause
Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleCessna 340: 1 caseAll aircraft: 265 casesProbable cause
Object/animal/substance: debris/dirt/foreign objectEnvironmental issues › Physical environment · Effect on operationCessna 340: 1 caseAll aircraft: 101 casesProbable cause
Temp/humidity/pressure: high density altitudeEnvironmental issues › Conditions/weather/phenomena · Effect on operationCessna 340: 2 casesAll aircraft: 278 cases
Runway/land/takeoff/taxi surface: soft surfaceEnvironmental issues › Physical environment · Effect on operationCessna 340: 1 caseAll aircraft: 264 cases

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 of the multiengine airplane reported that, while using a short-field takeoff technique on a private, dirt airstrip, the airplane encountered soft patches of dirt. He rotated the airplane to initiate a climb, but the airplane could not climb higher than ground effect, and the stall horn sounded. He lowered the nose to gain airspeed, but the landing gear impacted a gravel berm, which sheared off the landing gear. The airplane then skidded 150 ft and came to rest in a dirt field past the end of the runway. The airplane sustained substantial damage to the left wing and right horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot also reported that, before takeoff, he determined that there was about 5,000 ft of usable runway; however, the runway was actually about 3,500 ft long. He added that he believed the airport elevation was about 5,000 ft mean sea level, and the density altitude was about 8,000 ft. Given this information, it is likely that the pilot's failure to accurately assess the available runway resulted in impact with a gravel berm during the attempted takeoff.

Factual narrative

The pilot of the multi-engine airplane reported that, while utilizing a short field takeoff technique on a private, dirt airstrip, the airplane encountered soft patches of dirt. He rotated the airplane to initiate a climb, but the airplane could not climb higher than ground effect and the stall horn sounded. He lowered the nose to gain airspeed, but the landing gear impacted the gravel berm, which sheared off the landing gear and the airplane came to rest in the dirt field. The pilot also reported that, before takeoff, he walked the airstrip and determined there was about 5,000 ft of usable runway and he estimated he needed 3,800 ft. The airport elevation was about 5, 000 feet and the density altitude was about 8,000 ft. After the accident, the pilot used Google Earth to measure the runway. According to Google Earth the runway length was about 3,500 ft. The airplane sustained substantial damage to the left wing and right horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that the wind was light and variable, visibility 10 statute miles, temperature 72°F. The airplane was departing to the south. The airport elevation was about 5,500 ft mean sea level (msl). The calculated density altitude was 7,400 ft. The calculated takeoff distance on a level, hard surface, dry runway was 2,240 ft and the takeoff distance over a 50 ft obstacle was 2,930 ft. The calculated maximum rate of climb was 1,400 ft/min.

Aircraft

Registration
N5418M
Reported as
Cessna 340 (Undesignat)
Category
Airplane
Serial number
340-0029
Built
1971
Airframe hours
7,198
Engines
Continental TSIO-520-N, 310 horsepower, reciprocatingContinental TSIO-520-N, 310 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 2, 2019
Departed
EUL · Caldwell, ID
Destination
N/A · Carvers, NV
Airport
N/A · Private Field, runway 17, 5,000 × 50 ft, dirt
Equipment
Stall warning system, Handheld GPS, Electronic flight bag or handheld device, Auto-pilot

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
61
Injuries
None
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
December 10, 2018
Seat
Left
Flight hours
19,000 total · 150 in this make and model · 18,500 as pilot in command · 65 in the last 90 days · 30 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 10 °F
Altimeter
30.04 inHg
Observed at
KTMT, 30 nm away

Docket · 4

The files NTSB released with the investigation on July 18, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.3 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.