N540ML Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
N540ML Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
https://registry.faa.gov/N540ML
Location: Cedartown, GA
Accident Number: GAA20CA021A
Date & Time: 10/11/2019, 1904 EDT
Registration: N540ML
Aircraft: WINGTIP TO WINGTIP LLC PANZL S-330
Aircraft Damage: Substantial
Defining Event: Ground collision
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal
Analysis
***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.***
The pilot in the Panzl S-330 airplane reported that he was landing and had turned on the airport runway pilot-controlled lighting about 5 miles before arriving at the airport and transmitted a 2-mile final radio call over the airport's CTAF. He landed the airplane and made "S" turns on runway 28 because "it is not possible to see the opposite threshold" when established on the runway. When the pilot began a right turn to exit the runway at the midfield taxiway, a De Havilland DHC-6 Twin Otter airplane that had initiated a takeoff roll from the opposite end of the runway impacted his airplane. The airport's runway does not have a parallel taxiway, and it is standard practice to back taxi to the departure end. The pilot in the Twin Otter reported that he transmitted his intentions to taxi to the midfield intersection and to depart from runway 10. He did not activate the pilot-controlled runway lighting but recalled that he had noticed that the pilot-controlled lighting had been turned on, and he taxied to the hold short line and did not see any airplanes. He back taxied to the approach end of runway 10 and maneuvered his airplane to take off. During the takeoff roll, the airplane's left wing struck the Panzl S-330. Neither pilot recalled hearing radio transmissions on the CTAF. The Twin Otter sustained substantial damage to the left wing spar. Both pilots reported that there were no preaccident mechanical failures or malfunctions with their airplanes 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:
***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.***
The departing pilot's failure to see and avoid the arriving airplane as it was turning off the runway from which the departing pilot was taking off.
Findings
Personnel issues
Monitoring other aircraft - Pilot of other aircraft (Cause)
Environmental issues
Aircraft - Effect on operation (Cause)
Factual Information
History of Flight
Taxi
Ground collision (Defining event)
Pilot Information
Certificate: Commercial
Age: 65, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Single
Other Aircraft Rating(s): Glider
Restraint Used: 5-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: BasicMed With Waivers/Limitations
Last FAA Medical Exam: 12/09/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 03/29/2019
Flight Time: (Estimated) 2465 hours (Total, all aircraft), 665 hours (Total, this make and model), 2421 hours (Pilot In Command, all aircraft), 34 hours (Last 90 days, all aircraft), 17 hours (Last 30 days, all aircraft), 3 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: WINGTIP TO WINGTIP LLC
Registration: N540ML
Model/Series: PANZL S-330
Aircraft Category: Airplane
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Experimental
Serial Number: 008
Landing Gear Type: Tailwheel
Seats: 1
Date/Type of Last Inspection: 04/09/2019, Condition
Certified Max Gross Wt.: 1550 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 752.3 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: Not installed
Engine Model/Series: IO-540 G1D5
Registered Owner: On file
Rated Power: 330 hp
Operator: On file
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Night
Observation Facility, Elevation: KPUJ, 1290 ft msl
Distance from Accident Site: 12 Nautical Miles
Observation Time: 0255 UTC
Direction from Accident Site: 122°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling:None
Visibility (RVR):
Wind Speed/Gusts: Calm /
Turbulence Type Forecast/Actual:
Wind Direction:
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.14 inches Hg
Temperature/Dew Point: 17°C / 14°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Tazewell, TN (3A2)
Type of Flight Plan Filed: None
Destination: Cedartown, GA (4A4)
Type of Clearance: None
Departure Time: 1905 EDT
Type of Airspace: Class G
Airport Information
Airport: Polk County Airport- Cornelius (4A4)
Runway Surface Type: Asphalt
Airport Elevation: 973 ft
Runway Surface Condition: Dry
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing: Full Stop
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: 34.018611, -85.146389 (est)
N166DH Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
N166DH Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
Location: Cedartown, GA
Accident Number: GAA20CA021B
Date & Time: 10/11/2019, 1904 EDT
Registration: N166DH
Aircraft: De Havilland DHC 6 TWIN OTTER
Aircraft Damage: Unknown
Defining Event: Ground collision
Injuries: 11 None
Flight Conducted Under: Part 91: General Aviation - Skydiving
Analysis
***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.***
The pilot in the Panzl S-330 airplane reported that he was landing and had turned on the airport runway pilot-controlled lighting about 5 miles before arriving at the airport and transmitted a 2-mile final radio call over the airport's CTAF. He landed the airplane and made "S" turns on runway 28 because "it is not possible to see the opposite threshold" when established on the runway. When the pilot began a right turn to exit the runway at the midfield taxiway, a De Havilland DHC-6 Twin Otter airplane that had initiated a takeoff roll from the opposite end of the runway impacted his airplane. The airport's runway does not have a parallel taxiway, and it is standard practice to back taxi to the departure end. The pilot in the Twin Otter reported that he transmitted his intentions to taxi to the midfield intersection and to depart from runway 10. He did not activate the pilot-controlled runway lighting but recalled that he had noticed that the pilot-controlled lighting had been turned on, and he taxied to the hold short line and did not see any airplanes. He back taxied to the approach end of runway 10 and maneuvered his airplane to take off. During the takeoff roll, the airplane's left wing struck the Panzl S-330. Neither pilot recalled hearing radio transmissions on the CTAF. The Twin Otter sustained substantial damage to the left wing spar. Both pilots reported that there were no preaccident mechanical failures or malfunctions with their airplanes 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:
***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.***
The departing pilot's failure to see and avoid the arriving airplane as it was turning off the runway from which the departing pilot was taking off.
Findings
Personnel issues
Monitoring other aircraft - Pilot (Cause)
Environmental issues
Aircraft - Effect on operation (Cause)
Factual Information
History of Flight
Takeoff
Ground collision (Defining event)
Pilot Information
Certificate: Commercial
Age: 73, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Unknown
Other Aircraft Rating(s): None
Restraint Used: Unknown
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Single-engine
Toxicology Performed: No
Medical Certification: Class 2 None
Last FAA Medical Exam: 08/01/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time:
Aircraft and Owner/Operator Information
Aircraft Make: De Havilland
Registration: N166DH
Model/Series: DHC 6 TWIN OTTER 100
Aircraft Category: Airplane
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 66
Landing Gear Type: Tricycle
Seats: 1
Date/Type of Last Inspection:
Certified Max Gross Wt.: 12500 lbs
Time Since Last Inspection:
Engines: 2 Turbo Prop
Airframe Total Time:
Engine Manufacturer: Pratt & Whitney
ELT:
Engine Model/Series: PT6A
Registered Owner: Sdp Llc
Rated Power:
Operator: Sdp Llc
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Night
Observation Facility, Elevation: KPUJ, 1290 ft msl
Distance from Accident Site: 12 Nautical Miles
Observation Time: 0255 UTC
Direction from Accident Site: 122°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: Calm /
Turbulence Type Forecast/Actual:
Wind Direction:
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.14 inches Hg
Temperature/Dew Point: 17°C / 14°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Cedartown, GA (4A4)
Type of Flight Plan Filed: None
Destination: Cedartown, GA (4A4)
Type of Clearance: None
Departure Time: 1904 EDT
Type of Airspace: Class G
Airport Information
Airport: Polk County Airport- Cornelius (4A4)
Runway Surface Type: Asphalt
Airport Elevation: 973 ft
Runway Surface Condition: Dry
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing: Full Stop
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Unknown
Passenger Injuries: 10 None
Aircraft Fire:None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 11 None
Latitude, Longitude: 34.018611, -85.146389 (est)
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