- Date
- August 10, 2003, 14:15 local (19:15 UTC)
- Place
- Doland, SD
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4656MWeatherly 620A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 2, 2004
- Report
- Approved by Office Director
- Parties
- FAA- Rapid City FSDO
- FAA report
- 20030810018639A
- Case key
- 57689
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to maintain clearance from the wires and directional control not being possible due to the failure of the brake system. Factors contributing to the accident were the wires, the trees, and the failure of the brake system.
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.
Analysis
The airplane sustained substantial damage when it veered off the left side of the runway and impacted trees while landing. The pilot reported the airplane struck power lines while performing an aerial application to a field. The airplane remained airborne, and the pilot returned to his private airstrip about seven and a half miles south of the power lines. The pilot reported that the power line had wrapped around the landing gear and tore the brake line to the left and right main landing gear. The pilot stated that while en route to the airstrip he determined the landing gear brakes were not operational due to the impact with the wires.
Factual narrative
On August 10, 2003, at 1415 central daylight time, a Weatherly 620A, N4656M, piloted by a commercial pilot, sustained substantial damage when it impacted trees while landing on runway 30 (2,528 feet by 100 feet, turf) at Hofer Private Airport (SD13), Doland, South Dakota. Visual meteorological conditions prevailed at the time of the accident. The pilot reported no injuries. The 14 CFR Part 137 aerial application flight was not operating on a flight plan. The local aerial application flight originated at 1345.
The pilot reported he struck power lines while performing an aerial application to a field. The airplane remained airborne, and the pilot returned to his private airstrip about seven and a half miles south of the power lines. The pilot reported that the power line had wrapped around the landing gear and tore the brake line to the left and right main landing gears. Prior to the landing, the pilot applied pressure to the brakes and realized the brakes would not be operational during the landing. While landing the airplane veered off the runway and impacted trees.
Aircraft
- Registration
- N4656M
- Reported as
- Weatherly 620A
- Category
- Airplane
- Serial number
- 1540
- Airframe hours
- 2,801
- Engine
- Pratt & Whitney 985 14-B, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Perry Lee Hofer
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · May 7, 2003 · 300 hours before
- Departed
- SD13 · Doland, SD
- Destination
- SD13 · Doland, SD
- Airport
- SD13 · Hofer Private Airport, runway 12, 2,528 × 100 ft, grass/turf
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 47
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Last flight review
- March 29, 2002
- Seat
- Single
- Flight hours
- 2,000 total · 1,000 in this make and model · 300 in the last 90 days · 90 in the last 30 days · 10 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 360° at 9 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 3,500 ft overcast
- Temperature
- 77 °F, dew point 64 °F
- Altimeter
- 30.13 inHg
- Observed at
- HON, 32 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.