Saturday, September 28, 2019

Runway Excursion: North American AT6, N757LF; accident occurred May 18, 2016 at Mason Jewett Field Airport (KTEW), Ingham County, Michigan

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Detroit, Michigan

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf


Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


http://registry.faa.gov/N757LF


Location: Mason, MI

Accident Number: CEN16TA194
Date & Time: 05/18/2016, 1520 EDT
Registration: N757LF
Aircraft: NORTH AMERICAN AT6
Aircraft Damage: Substantial
Defining Event: Runway excursion
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal

On May 18, 2016, about 1520 eastern daylight time, a tail-wheel equipped North American AT-6D, N757LF, departed the left side of the runway while landing at Mason Jewett Field Airport (TEW), Mason, Michigan. The airplane sustained substantial damage to the left-wing structure. The commercial pilot, the sole occupant, was not injured. The airplane was registered to and operated by a private individual under the provisions of Title 14 Code of Federal Regulations Part 91 as a personal flight. Day visual meteorological conditions prevailed for the flight, and no flight plan was filed. The flight originated from the Brooks Field Airport (RMY), Marshall, Michigan, at 1455 was destined for TEW.


The pilot reported that he checked the automated weather report at TEW while about 10 miles from the airport, and again on short final for landing. He said both times the weather report stated the winds were from 090º at 6 kts, favoring runway 10. The airplane touched down normally on runway 10, prior to the 1,000-ft markers on the runway. On rollout, prior to the halfway point of 2,000 ft, there was a wind shift, and he encountered a gust of wind in a "northerly direction." He added aileron flight control input to "counteract the wind shift" but the airplane "veered/looped" to the left. The airplane exited the left side of the runway and came to rest in a drainage ditch near the runway.


At 1514, the automated weather observation system (AWOS) at TEW reported wind from 040º at 5 kts, visibility 10 miles, scattered clouds at 6,500 ft, temperature 17ºC, dew point 2ºC, and barometric altimeter setting 30.19 inches of mercury.


At 1534, the AWOS at TEW reported wind from 010º at 5 kts, gusting 14 kts, visibility 10 miles, scattered clouds at 6,500 ft, temperature 16ºC, dew point 2ºC, and barometric altimeter setting 30.19 inches of mercury.


The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. He stated the accident flight was his 2nd hour of flight time in the accident airplane. He was "still getting a feel for the airplane, especially how it reacted in different wind conditions." He said more time in the accident airplane would have helped to prevent the accident.


Pilot Information


Certificate: Airline Transport; Commercial

Age: 64, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s):None 
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 05/07/2015
Occupational Pilot: No
Last Flight Review or Equivalent: 05/12/2016
Flight Time:  (Estimated) 25581 hours (Total, all aircraft), 89 hours (Total, this make and model), 22082 hours (Pilot In Command, all aircraft), 6 hours (Last 90 days, all aircraft), 6 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information


Aircraft Make: NORTH AMERICAN

Registration: N757LF
Model/Series: AT6 D
Aircraft Category: Airplane
Year of Manufacture: 1943
Amateur Built:No 
Airworthiness Certificate: Normal
Serial Number: 84991
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 06/08/2015, Annual
Certified Max Gross Wt.: 5300 lbs
Time Since Last Inspection:
Engines: Reciprocating
Airframe Total Time: 9343 Hours as of last inspection
Engine Manufacturer: Pratt and Whitney
ELT: Installed, not activated
Engine Model/Series: R-1340-51171
Registered Owner: On file
Rated Power:600 hp 
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan


Conditions at Accident Site: Visual Conditions

Condition of Light: Day
Observation Facility, Elevation: KTEW
Distance from Accident Site:
Observation Time: 2014 UTC
Direction from Accident Site:
Lowest Cloud Condition: Scattered / 6500 ft agl
Visibility:  10 Miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 5 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 40°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.19 inches Hg
Temperature/Dew Point: 17°C / 2°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Marshall, MI (RMY)
Type of Flight Plan Filed: None
Destination: Mason, MI (TEW)
Type of Clearance: None
Departure Time: 1455 EDT
Type of Airspace: Airport Advisory Area

Airport Information


Airport: MASON JEWETT FIELD (TEW)

Runway Surface Type: Asphalt
Airport Elevation: 919 ft
Runway Surface Condition: Dry
Runway Used: 10
IFR Approach: None
Runway Length/Width: 4004 ft / 75 ft
VFR Approach/Landing: Full Stop; Traffic Pattern

Wreckage and Impact Information


Crew Injuries: 1 None

Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 42.570000, -84.420000 (est)

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