Analysis
The pilot reported that, during the landing roll on an unimproved airstrip, the tailwheel-equipped airplane "hit a hole" and came to rest inverted.
The airplane sustained substantial damage to the empennage.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane 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 pilot's selection of unsuitable terrain for landing, which resulted in a nose-over.
Findings
Personnel issues
Decision making/judgment - Pilot (Cause)
Environmental issues
Rough terrain - Effect on operation (Cause)
Federal Aviation Administration / Flight Standards District Office; Anchorage, Alaska
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/N109T
Location: Holy Cross, AK
Accident Number: GAA17CA565
Date & Time: 09/26/2017, 1000 AKD
Registration: N109T
Aircraft: PIPER PA18
Aircraft Damage: Substantial
Defining Event: Nose over/nose down
Injuries: 1 None
Flight Conducted Under:Part 91: General Aviation - Personal
The pilot reported that, during the landing roll, on an unimproved airstrip, the tailwheel-equipped airplane "hit a hole" and came to rest inverted.
The airplane sustained substantial damage to the empennage.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Pilot Information
Certificate: Commercial
Age: 57, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: Unknown
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: 07/17/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 05/22/2017
Flight Time: (Estimated) 16300 hours (Total, all aircraft), 2000 hours (Total, this make and model), 230 hours (Last 90 days, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: PIPER
Registration: N109T
Model/Series: PA18 150
Aircraft Category: Airplane
Year of Manufacture: 1952
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18-2223
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 06/21/2017, 100 Hour
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 9208 Hours
Engine Manufacturer: LYCOMING
ELT: C126 installed, not activated
Engine Model/Series: O-320-B2B
Registered Owner: BRUCE J. WERBA
Rated Power: 150 hp
Operator: On file
Operating Certificate(s) Held: On-demand Air Taxi (135)
Operator Does Business As: Alaska Pike Safaris
Operator Designator Code:
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: PAHC, 20 ft msl
Observation Time: 1856 UTC
Distance from Accident Site: 23 Nautical Miles
Direction from Accident Site: 73°
Lowest Cloud Condition:
Temperature/Dew Point: 4°C / 1°C
Lowest Ceiling: Overcast / 5500 ft agl
Visibility: 10 Miles
Wind Speed/Gusts, Direction: 9 knots, 350°
Visibility (RVR):
Altimeter Setting: 29.88 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: HOLY CROSS, AK (HCA)
Type of Flight Plan Filed: None
Destination: Holy Cross, AK
Type of Clearance: None
Departure Time: 1000 AKD
Type of Airspace: Class G
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: 62.070000, -160.563611 (est)
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
http://registry.faa.gov/N109T
Accident Number: GAA17CA565
Date & Time: 09/26/2017, 1000 AKD
Registration: N109T
Aircraft: PIPER PA18
Aircraft Damage: Substantial
Defining Event: Nose over/nose down
Injuries: 1 None
Flight Conducted Under:Part 91: General Aviation - Personal
The pilot reported that, during the landing roll, on an unimproved airstrip, the tailwheel-equipped airplane "hit a hole" and came to rest inverted.
The airplane sustained substantial damage to the empennage.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Pilot Information
Certificate: Commercial
Age: 57, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: Unknown
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: 07/17/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 05/22/2017
Flight Time: (Estimated) 16300 hours (Total, all aircraft), 2000 hours (Total, this make and model), 230 hours (Last 90 days, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: PIPER
Registration: N109T
Model/Series: PA18 150
Aircraft Category: Airplane
Year of Manufacture: 1952
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18-2223
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 06/21/2017, 100 Hour
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 9208 Hours
Engine Manufacturer: LYCOMING
ELT: C126 installed, not activated
Engine Model/Series: O-320-B2B
Registered Owner: BRUCE J. WERBA
Rated Power: 150 hp
Operator: On file
Operating Certificate(s) Held: On-demand Air Taxi (135)
Operator Does Business As: Alaska Pike Safaris
Operator Designator Code:
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: PAHC, 20 ft msl
Observation Time: 1856 UTC
Distance from Accident Site: 23 Nautical Miles
Direction from Accident Site: 73°
Lowest Cloud Condition:
Temperature/Dew Point: 4°C / 1°C
Lowest Ceiling: Overcast / 5500 ft agl
Visibility: 10 Miles
Wind Speed/Gusts, Direction: 9 knots, 350°
Visibility (RVR):
Altimeter Setting: 29.88 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: HOLY CROSS, AK (HCA)
Type of Flight Plan Filed: None
Destination: Holy Cross, AK
Type of Clearance: None
Departure Time: 1000 AKD
Type of Airspace: Class G
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: 62.070000, -160.563611 (est)
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