Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Sacramento, California
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/N5128N
Location: Nicolaus, CA
Accident Number: GAA18CA309
Date & Time: 05/19/2018, 0945 PDT
Registration: N5128N
Aircraft: AIR TRACTOR INC AT 402
Aircraft Damage: Substantial
Defining Event: Low altitude operation/event
Injuries: 1 None
Flight Conducted Under: Part 137: Agricultural
The pilot reported that, during an aerial application flight, he observed a power transmission wire with no obstructions underneath. He added that he turned around to enter the spray field under the wire, where he observed one wire sagging lower than the other wires. While flying under the power transmission wire, he encountered turbulence, and decided to lower the nose to prevent being pushed into the wire. The tail went up and struck the power transmission wire.
The airplane sustained substantial damage to the vertical stabilizer and rudder.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The pilot reported in the NTSB 6120.1 Form that the wind was calm.
Pilot Information
Certificate: Commercial
Age: 69
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Single
Other Aircraft Rating(s): Helicopter
Restraint Used: 4-point
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: 12/21/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 12/27/2017
Flight Time: (Estimated) 33252 hours (Total, all aircraft), 631 hours (Total, this make and model), 136 hours (Last 90 days, all aircraft), 105 hours (Last 30 days, all aircraft), 7 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: AIR TRACTOR INC
Registration: N5128N
Model/Series: AT 402 A
Aircraft Category: Airplane
Year of Manufacture: 1998
Amateur Built: No
Airworthiness Certificate: Restricted
Serial Number: 402A-1054
Landing Gear Type: Tailwheel
Seats: 1
Date/Type of Last Inspection: 12/01/2017, Annual
Certified Max Gross Wt.: 7000 lbs
Time Since Last Inspection:
Engines: 1 Turbo Prop
Airframe Total Time: 5133 Hours at time of accident
Engine Manufacturer: P&W Canada
ELT: Not installed
Engine Model/Series: PT6-11AG
Registered Owner: ARENA PESTICIDE MANAGEMENT INC
Rated Power: 550 hp
Operator: ARENA PESTICIDE MANAGEMENT INC
Operating Certificate(s) Held: Agricultural Aircraft (137)
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KLHM, 122 ft msl
Distance from Accident Site: 7 Nautical Miles
Observation Time: 1635 UTC
Direction from Accident Site: 102°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 10 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 150°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.91 inches Hg
Temperature/Dew Point: 17°C / 10°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Knights Landing, CA (PVT)
Type of Flight Plan Filed: None
Destination:
Type of Clearance: None
Departure Time: 0900 PDT
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: 38.932778, -121.496667 (est)
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