Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Philadelphia, Pennsylvania
Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Location: Marydel, DE
Accident Number: ERA17LA249
Date & Time: 07/19/2017, 0921 EDT
Registration: N691Y
Aircraft: GRUMMAN G 164
Aircraft Damage: Substantial
Defining Event: Low altitude operation/event
Injuries: 1 Serious
Flight Conducted Under: Part 137: Agricultural
On July 19, 2017, about 0921 eastern daylight time, a Grumman G164 airplane, N691Y, was substantially damaged when it struck power lines and impacted a field while spraying a field near Marydel, Delaware. The commercial pilot was seriously injured. The airplane was registered to and operated by Air Enterprises, Inc., as a Title 14 Code of Federal Regulations Part 137 aerial application flight. Visual meteorological conditions prevailed at the accident site and no flight plan was filed for the flight that departed Johnson's Airport (DE09), Magnolia, Delaware, about 0910.
According to the operator, the pilot had completed two spray runs and had returned to DE09 to reload. He then departed for his third spray run when the airplane struck a set of four power lines and impacted terrain after completing the first pass of the field. In an interview, the pilot told a Federal Aviation Administration (FAA) inspector that he did not remember anything about the accident.
Postaccident examination revealed the airplane impacted a field adjacent to the field he was spraying and sustained substantial damage to both wings and the fuselage. There was no postimpact fire.
Data downloaded from the onboard AgNav P151 GPS revealed the airplane approached the field on a westerly heading, passed low over the field as the sprayer was turned on then off, before it began a climb near the power lines. The airplane continued to travel west until data stopped at 0921 when the airplane was on the opposite side of the power lines.
The pilot held a commercial pilot certificate with ratings for airplane single-engine land, and instrument airplane. His last FAA second-class medical certificate was issued on March 7, 2017. The pilot reported a total of 913 hours, with 63 hours in the same make/model as the accident airplane.
Weather reported at Dover Air Force Base (DOV), Dover, Delaware, about 10 miles southeast of the accident site, at 0858, was wind from 200° at 5 knots, visibility 10 miles and clear skies. The temperature was 27° C and the dew point was also 27° C.
Pilot Information
Certificate: Commercial
Age: 52, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Center
Other Aircraft Rating(s): None
Restraint Used: 5-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: Yes
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 03/07/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time: 913 hours (Total, all aircraft), 63 hours (Total, this make and model)
Aircraft and Owner/Operator Information
Aircraft Make: GRUMMAN
Registration: N691Y
Model/Series: G 164 UNDESIGNATED
Aircraft Category: Airplane
Year of Manufacture: 1964
Amateur Built: No
Airworthiness Certificate: Restricted; Utility
Serial Number: 242
Landing Gear Type: Tailwheel
Seats: 1
Date/Type of Last Inspection: 08/02/2016, Annual
Certified Max Gross Wt.:
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 9490.1 Hours as of last inspection
Engine Manufacturer: Pratt&Whitney
ELT: Not installed
Engine Model/Series: R-985
Registered Owner: On file
Rated Power: 450 hp
Operator: On file
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: DOV, 29 ft msl
Distance from Accident Site: 10 Nautical Miles
Observation Time: 0958 EDT
Direction from Accident Site: 110°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 5 knots /
Turbulence Type Forecast/Actual: / None
Wind Direction: 200°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 30.06 inches Hg
Temperature/Dew Point: 27°C / 27°C
Precipitation and Obscuration:
Departure Point: Magnolia, DE (DE09)
Type of Flight Plan Filed: None
Destination: Marydel, DE (None)
Type of Clearance: None
Departure Time: 0910 EDT
Type of Airspace: Unknown
Wreckage and Impact Information
Crew Injuries: 1 Serious
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Serious
Latitude, Longitude: 39.000000, -75.000000 (est)
14 CFR Part 137: Agricultural
Accident occurred Wednesday, July 19, 2017 in Marydel, DE
Aircraft: GRUMMAN G 164, registration: N691Y
Injuries: 1 Serious.
This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
On July 19, 2017, about 0920 eastern daylight time, a Grumman G164 airplane, N691Y, was substantially damaged when it struck power lines and impacted a soybean field near Marydel, Delaware. The commercial pilot was seriously injured. The airplane was registered to and operated by Air Enterprises, Inc., as a 14 Code of Federal Regulations part 137 aerial application flight. Visual meteorological conditions prevailed at the accident site and no flight plan was filed for the flight that departed Johnson's Airport (DE09), Magnolia, Delaware, about 0910.
According to a Federal Aviation Administration (FAA) inspector, the accident occurred on the first pass of the pilot's third leg of the day. The airplane clipped a set of 40-foot-tall power lines at the completion of the first pass. The airplane then descended and impacted a field. Postaccident examination revealed the airplane came to rest upright and both wings were displaced forward and partially separated. There was no postimpact fire.
Weather reported at Dover Air Force Base (DOV), Dover, Delaware, about 10 miles southeast of the accident site, at 0858, was wind from 200° at 5 knots, visibility 10 miles and clear skies. The temperature was 27° C and the dew point was also 27° C.
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