ASN Wikibase Occurrence # 226146
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| Date: | Thursday 13 June 2019 |
| Time: | 16:30 |
| Type: |  Air Tractor AT-502B |
| Owner/operator: | Sun Valley Dusting Co |
| Registration: | N103CK |
| MSN: | 502B-2795 |
| Year of manufacture: | 2012 |
| Total airframe hrs: | 3700 hours |
| Engine model: | P&W Canada PT6A-34AG |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Cameron County, San Benito, TX -
 United States of America
|
| Phase: | Take off |
| Nature: | Agricultural |
| Departure airport: | San Benito, TX (53XS) |
| San Benito, TX (53XS) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot of the tailwheel-equipped airplane reported that, during takeoff with a "heavy load" from a 2,600-ft-long private runway, the airplane lifted off, but "due to a shifting wind and high density altitude," the airplane aerodynamically stalled and impacted a field at the end of the runway. The airplane nosed over and was consumed by a postimpact fire.
The airplane sustained substantial damage to the fuselage.
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 airplane’s gross weight at the time of the accident was 9,350 lbs, and the manufacturer's maximum gross takeoff weight was 9,400 lbs.
An automated weather observation station located 6 miles north of the accident site reported that, about 37 minutes before the accident, the wind was from 190° at 10 knots, 10 statute miles visibility, scattered clouds at 5,000 ft, temperature 90° F, dew point 70° F, and altimeter setting 30.04 inches of mercury. The same automated station reported that, about 22 minutes after the accident, the wind was from 040° at 6 knots. The airplane was departing from runway 12.
Probable Cause: The pilot's improper decision to take off with the airplane near its maximum allowable gross takeoff weight and his subsequent exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=103CK
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Jun-2019 01:22 | Geno | Added |
| 14-Jun-2019 14:44 | Captain Adam | Updated [Other fatalities] |
| 14-Jun-2019 16:10 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Operator, Source, Damage] |
| 14-Jun-2019 20:33 | Captain Adam | Updated [Narrative] |
| 13-Nov-2019 08:22 | ASN Update Bot | Updated [Time, Cn, Departure airport, Destination airport, Source, Damage, Narrative, Accident report, ] |
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