Friday, May 24, 2019

Loss of Control in Flight: Schweizer G-164B, N7500K, accident occurred May 21, 2019 in Pearsall, Frio County, Texas



Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; San Antonio, Texas

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


Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


https://registry.faa.gov/N7500K

Location: Pearsall, TX
Accident Number: GAA19CA277
Date & Time: 05/21/2019, 1030 CDT
Registration: N7500K
Aircraft: Grumman G164
Aircraft Damage: Destroyed
Defining Event: Loss of control in flight
Injuries: 1 Serious
Flight Conducted Under: Part 137: Agricultural 

Analysis 

The pilot reported that, while conducting an agricultural application flight, he thought the airplane was above some power lines, but the landing gear got tangled in the top line, and the airplane was pulled downward. The pilot attempted to correct by pulling "hard on the stick and pushed the power forward," and the airplane became airborne, but the left wing was pulled downward again. The pilot attempted to lift the wing by using right rudder and was able to maintain flight. The airplane was again pulled downward until it impacted the ground. The airplane was destroyed by postaccident fire. 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 failure to maintain clearance from power lines during low-altitude maneuvering.

Findings

Aircraft
Altitude - Not attained/maintained (Cause)

Personnel issues
Monitoring environment - Pilot (Cause)

Environmental issues
Wire - Effect on operation (Cause)

Factual Information

History of Flight

Maneuvering-low-alt flying
Collision with terr/obj (non-CFIT)

Loss of control in flight (Defining event)


Pilot Information

Certificate: Commercial
Age: 34, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Single
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 02/07/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 08/31/2018
Flight Time:  (Estimated) 1600 hours (Total, all aircraft), 700 hours (Total, this make and model) 

Aircraft and Owner/Operator Information

Aircraft Make: Grumman
Registration: N7500K
Model/Series: G164 B
Aircraft Category: Airplane
Year of Manufacture: 1986
Amateur Built: No
Airworthiness Certificate: Restricted
Serial Number: 784B
Landing Gear Type: Tailwheel
Seats: 1
Date/Type of Last Inspection: 03/08/2019, Annual
Certified Max Gross Wt.: 7000 lbs
Time Since Last Inspection:
Engines: 1 Turbo Prop
Airframe Total Time: 17273 Hours as of last inspection
Engine Manufacturer: Pratt & Whitney
ELT: Not installed
Engine Model/Series: PT6-28
Registered Owner: FITCH, MATT DBA
Rated Power: 680 hp
Operator: FITCH, MATT DBA
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: KPEZ, 430 ft msl
Distance from Accident Site: 20 Nautical Miles
Observation Time: 1555 UTC
Direction from Accident Site: 72°
Lowest Cloud Condition:
Visibility:  10 Miles
Lowest Ceiling: Overcast / 3400 ft agl
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 10°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.73 inches Hg
Temperature/Dew Point: 24°C / 14°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Pearsall, TX (T30)
Type of Flight Plan Filed: Unknown
Destination: Pearsall, TX (T30)
Type of Clearance: Unknown
Departure Time: 0930 CDT
Type of Airspace: Class G 

Wreckage and Impact Information

Crew Injuries: 1 Serious
Aircraft Damage: Destroyed
Passenger Injuries: N/A
Aircraft Fire: On-Ground
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Serious
Latitude, Longitude: 28.845556, -98.878056 (est)

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