DEN85LTK02

NTSB accident investigation · Piper PA-25-235 · Yankton, SD · August 24, 1985

Accident · Minor injuriesFinal report
Date
August 23, 1985, 18:45 local (Aug 24, 1985, 00:45 UTC)
Place
Yankton, SD
Injuries
1 minor
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N9748PPiper PA-25-235
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850823040429A
Case key
16786

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectManeuvering - aerial application
Object - wire,transmissionFactor
Visual lookout - inadequatePilot in commandCause
Clearance - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The acft descended uncontrolled into the terrain after it contacted a power line during an aerial application flt. Witnesses reported the acft appeared to pull up at the west end of the 40 acre fld, however, it did not clear the lines and it nosed over into another fld. The insecticide being sprayed was ethyo/parathion. The plt was covered with the chemical during the accident but was hosed off within 5 minutes after the accident.

Aircraft

Registration
N9748P
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-7556015
Airframe hours
1,600
Engine
Lycoming O-540, 235 horsepower, reciprocating
Damage
Destroyed
Flight
Aerial application · Part 137
Registered owner
Dave Tunge
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 10, 1985 · 100 hours before

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
40
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
11,000 total · 550 in this make and model · 11,000 as pilot in command · 150 in the last 90 days · 50 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.