ASN Wikibase Occurrence # 209882
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| Date: | Wednesday 25 April 2018 |
| Time: | 12:25 |
| Type: |  North American SNJ-5 (AT-6D) Texan |
| Owner/operator: | Private |
| Registration: | N12377 |
| MSN: | 85086 |
| Total airframe hrs: | 7718 hours |
| Engine model: | Pratt & Whitney R-1340-AN-1 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Naval Air Station Kingsville (KNQI), Kingsville, TX -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Kingsville, TX (NQI) |
| Austin, TX (HYI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot, who was the owner of the vintage military trainer airplane, and a pilot-rated passenger were conducting a right turn just after takeoff, while still over the runway surface. Witnesses reported that the airplane's bank angle exceeded 90° and the highest altitude achieved was 200-300 ft. above ground level. The airplane then descended nose low and impacted a the ground less than 1 minute after takeoff. Radar data indicated that the airplane's average airspeed during the final portion of the flight was 87 mph and the bank angle reached about 56°, which would have resulted in a load factor of about 1.8g. Airplane performance data indicated that the accelerated stall speed at this load factor was about 95 mph, thus it is likely that, during the turn, the airplane exceeded its critical angle of attack and entered an accelerated stall at an altitude too low for the pilot to recover. Postaccident examination of the airplane did not reveal any anomalies that could be attributed to a preimpact mechanical deficiency.
The airplane was equipped with tandem seating and dual flight controls; the owner was seated in the front seat and the passenger was seated in the rear seat. The removable rear cockpit control stick was found outside of the airplane, and it could not be determined if the stick was installed at the time of the accident. No conclusive determination could be made as to which occupant was manipulating the controls during the accident sequence.
The private pilot was using decongestant and allergy medications. Toxicological testing identified diphenhydramine, a sedating antihistamine, at levels that were likely impairing; however, the extent to which this contributed to the accident could not be determined.
Probable Cause: The pilot's failure to maintain airspeed during a steep turn after takeoff, resulting in an exceedance of the airplane's critical angle of attack and a subsequent accelerated stall at an altitude too low for recovery.
Accident investigation:
 |
|
Sources:
NTSB
https://flightaware.com/live/flight/N12377
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=12377
Location
Media:
#UPDATE: The Kleberg County Sheriff\'s Department has confirmed that two people aboard the plane that crashed at NAS-Kingsville were killed. https://t.co/dXTMFtT874
— KIII 3 News (@kiii3news) 25 avril 2018
Crash of World War II-era plane kills two civilians at NAS Kingsvillehttps://t.co/O8XeT0YxTQ #FoxNews
— Mike OConnor (@GosportMike) 26 avril 2018
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Apr-2018 18:32 | gerard57 | Added |
| 25-Apr-2018 18:58 | Iceman 29 | Updated [Total fatalities, Total occupants, Other fatalities, Departure airport, Source, Embed code, Narrative] |
| 25-Apr-2018 20:53 | TB | Updated [Operator, Location, Departure airport, Source, Embed code, Damage, Narrative] |
| 26-Apr-2018 01:25 | Geno | Updated [Time, Aircraft type, Registration, Cn, Location, Departure airport, Source, Narrative] |
| 26-Apr-2018 09:44 | A.J. Scholten | Updated [Cn, Narrative] |
| 26-Apr-2018 21:01 | Iceman 29 | Updated [Embed code, Narrative] |
| 28-Apr-2018 05:58 | junior sjc | Updated [Operator, Embed code] |
| 28-Apr-2018 19:03 | junior sjc | Updated [Narrative] |
| 08-Jul-2018 11:18 | A.J. Scholten | Updated [Source] |
| 22-Mar-2019 19:13 | ASN Update Bot | Updated [Time, Cn, Departure airport, Destination airport, Source, Embed code, Narrative, Accident report, ] |
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