Aviation Accident Final Report - National Transportation Safety Board
The National Transportation Safety Board did not travel to the scene of this accident.
Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Greensboro, North Carolina
Investigation Docket - National Transportation Safety Board:
Location: Zebulon, North Carolina
Accident Number: ERA22LA196
Date and Time: April 16, 2022, 15:34 Local
Registration: N7784S
Aircraft: Schweizer SGS 2-33A
Aircraft Damage: Substantial
Defining Event: Collision with terr/obj (non-CFIT)
Injuries: 2 Minor
Flight Conducted Under: Part 91: General aviation - Instructional
Analysis
The flight instructor and student pilot were practicing a tow rope failure and were landing the glider with a light, quartering tailwind. On final approach the glider drifted right of the runway centerline and just before touchdown, the right wing struck a tree, which resulted in substantial damage to the right wing and canopy. The flight instructor reported that the airplane had no preimpact mechanical malfunctions or failures that would have precluded normal operation.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The flight instructor’s failure to maintain directional control with a quartering tailwind.
Findings
Personnel issues Aircraft control - Instructor/check pilot
Aircraft Lateral/bank control - Not attained/maintained
Environmental issues Tailwind - Response/compensation
Environmental issues Tailwind - Awareness of condition
Factual Information
History of Flight
Landing Collision with terr/obj (non-CFIT) (Defining event)
Pilot Information
Certificate: Commercial; Flight instructor
Age: 50,Male
Airplane Rating(s): Single-engine land; Single-engine sea; Multi-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 multi-engine; Airplane single-engine; Glider; Instrument airplane
Toxicology Performed:
Medical Certification: Class 2 Without waivers/limitations
Last FAA Medical Exam: December 13, 2021
Occupational Pilot: No
Last Flight Review or Equivalent: October 30, 2021
Flight Time: 2496 hours (Total, all aircraft), 31 hours (Total, this make and model), 2426 hours (Pilot In Command, all aircraft), 30 hours (Last 90 days, all aircraft), 18 hours (Last 30 days, all aircraft), 3 hours (Last 24 hours, all aircraft)
Student pilot Information
Certificate: None
Age: 15, Male
Airplane Rating(s): None
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): None
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed:
Medical Certification: None
Last FAA Medical Exam:
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time: 4 hours (Total, all aircraft), 4 hours (Total, this make and model), 3 hours (Last 90 days, all aircraft), 2 hours (Last 30 days, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: Schweizer
Registration: N7784S
Model/Series: SGS 2-33A
Aircraft Category: Glider
Year of Manufacture: 1969
Amateur Built:
Airworthiness Certificate: Normal
Serial Number: 154
Landing Gear Type:
Tailwheel; Skid Seats: 2
Date/Type of Last Inspection: June 21, 2021 Annual
Certified Max Gross Wt.:
Time Since Last Inspection:
Engines: 0
Airframe Total Time: 4091.2 Hrs at time of accident
Engine Manufacturer:
ELT: Not installed
Engine Model/Series:
Registered Owner:
Rated Power:
Operator:
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual (VMC)
Condition of Light: Day
Observation Facility, Elevation: LHZ,369 ft msl
Distance from Accident Site: 7 Nautical Miles
Observation Time: 15:35 Local
Direction from Accident Site: 323°
Lowest Cloud Condition: Scattered / 4000 ft AGL
Visibility 10 miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 10 knots /
Turbulence Type Forecast/Actual: /
Wind Direction: 210°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 29.99 inches Hg
Temperature/Dew Point: 22°C / 13°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Zebulon, NC
Type of Flight Plan Filed: None
Destination: Zebulon, NC
Type of Clearance: None
Departure Time:
Type of Airspace: Class E
Airport Information
Airport: Crooked Creek Airfield 7NC5
Runway Surface Type: Grass/turf
Airport Elevation: 250 ft msl
Runway Surface Condition: Dry;Rough
Runway Used: 22
IFR Approach: None
Runway Length/Width: 2500 ft / 80 ft
VFR Approach/Landing: Full stop
Wreckage and Impact Information
Crew Injuries: 2 Minor
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 Minor
Latitude, Longitude: 35.930731,-78.244951(est)
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