Tuesday, May 14, 2019

Loss of Control on Ground: Siai-Marchetti SM.1019-E, N772DW, accident occurred May 13, 2019 at Bozeman Yellowstone International Airport (KBZN), Gallatin County, Montana

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Helena, Montana

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


https://registry.faa.gov/N772DW


Location: Belgrade, MT
Accident Number: GAA19CA261
Date & Time: 05/13/2019, 1200 MDT
Registration: N772DW
Aircraft: Siai-Marchetti SM
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional

The flight instructor in the tailwheel-equipped airplane reported that, while the pilot receiving instruction performed a wheel landing, the touchdown was smooth and normal. The pilot reduced the power to idle, the tailwheel lowered, and the airspeed decelerated to about 30 knots. The airplane turned slightly to the right and the pilot corrected with "slightly too much left rudder", followed by "too much right rudder", which led to a ground loop to the right. The instructor attempted to recover with heavy left rudder and decided to perform a go around. He attempted to add power, but was unable to advance the power lever, which he believes was being firmly held by the pilot. The left wing impacted the runway and airplane tipped onto its nose,

The airplane sustained substantial damage to the left wing.

The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The airport's automated weather observation station reported that, about 4 minutes before the accident, the wind was from 330° at 7 knots. The pilot landed the airplane on runway 12.

Flight Instructor Information

Certificate: Flight Instructor; Commercial
Age: 26, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Rear
Other Aircraft Rating(s): Glider
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): Airplane Single-engine
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 01/15/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 07/08/2017
Flight Time:   (Estimated) 1274 hours (Total, all aircraft), 83 hours (Total, this make and model), 1233 hours (Pilot In Command, all aircraft), 49 hours (Last 90 days, all aircraft), 29 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft)

Pilot Information

Certificate: Private
Age: 41, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: None
Last FAA Medical Exam: 04/05/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 08/10/2017
Flight Time:   (Estimated) 331 hours (Total, all aircraft), 30 hours (Total, this make and model), 197 hours (Pilot In Command, all aircraft), 31 hours (Last 90 days, all aircraft), 18 hours (Last 30 days, all aircraft), 3 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Siai-Marchetti
Registration: N772DW
Model/Series: SM 1019
Aircraft Category: Airplane
Year of Manufacture: 1976
Amateur Built: No
Airworthiness Certificate: Experimental
Serial Number: 007
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 10/24/2018, Condition
Certified Max Gross Wt.: 2866 lbs
Time Since Last Inspection:
Engines: 1 Turbo Prop
Airframe Total Time: 1983 Hours as of last inspection
Engine Manufacturer: Allison
ELT: C126 installed, not activated
Engine Model/Series: 250-B15G
Registered Owner: On file
Rated Power: 317 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: KBZN, 4449 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1756 UTC
Direction from Accident Site: 358°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 330°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.9 inches Hg
Temperature/Dew Point: 21°C / 2°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Twin Bridges, MT (7S1)
Type of Flight Plan Filed: None
Destination: Belgrade, MT (BZN)
Type of Clearance: None
Departure Time: 1100 MDT
Type of Airspace: Class D

Airport Information

Airport: BOZEMAN YELLOWSTONE INTL (BZN)
Runway Surface Type: Asphalt
Airport Elevation: 4473 ft
Runway Surface Condition: Dry
Runway Used: 12
IFR Approach: None
Runway Length/Width: 8994 ft / 150 ft
VFR Approach/Landing: Full Stop

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude:  45.783889, -111.160833 (est)

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