The U.S. aircraft register, updated daily
Accidents · NTSB CEN14LA418 · Final report

Texas Helicopter CORP OH 13H/M74A accident near Little Falls, Minnesota, May 28, 2014

On May 28, 2014 at about 3:15 pm local time, a 1978 Texas Helicopter CORP OH 13H/M74A, registered N51853, was substantially damaged in an accident during maneuvering (low-alt flying) near Little Falls, Minnesota. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain clearance from a tree at the edge of a field that he was spraying.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
May 28, 2014 · about 3:15 pm local time
Place
Little Falls, Minnesota · map
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Texas Helicopter CORP OH 13H/M74A G, built 1978 · all OH 13H/M74As on the register
Registration
N51853 · no longer on the register · serial 78-021
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

The NTSB's narrative final · quoted from the NTSB record

The commercial pilot was conducting an aerial application flight. A witness reported observing the helicopter crossing over a highway that bordered a large field that the helicopter was spraying. The witness added that the helicopter was about three-quarters of the way down the field when it appeared to "hop." As the helicopter ascended, it appeared to veer right, and it then continued to ascend to about twice the height of nearby trees while rapidly spinning in circles. The witness lost sight of the helicopter when his vehicle passed trees alongside the road. After passing the trees, the witness looked back and saw smoke coming from a farm building. During an examination of the accident scene, a portion of one of the tail rotor blades was found at the base of a tree located on the west edge of the field. Cut and broken branches were found distributed westward from the tree along the ground. The helicopter was found embedded in the roof of a metal building about 70 yards west of the tree. An examination of the helicopter systems revealed no preimpact anomalies. It is likely that, on completion of his aerial application pass, the pilot did not pull the helicopter up in time to avoid the tree located at the edge of the field that he was spraying.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Loss of control in flight during maneuvering (low-alt flying) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during maneuvering (low-alt flying)

The NTSB's findings

  • cause Personnel issues › Psychological › Attention/monitoring › Monitoring environment › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Altitude › Not attained/maintained
  • cause Environmental issues › Physical environment › Object/animal/substance › Tree(s) › Awareness of condition
  • Aircraft › Aircraft propeller/rotor › Tail rotor › Tail rotor blade › Damaged/degraded

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; rotorcraft: helicopter
  • Flight time: 17,370 hours in all; 4,500 in this make and model; 25 in the last 90 days
  • Last flight review: April 1, 2013
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: left
  • Injury: fatal

The aircraft

  • Airframe total time: 7,697 hours
  • Last inspection: annual inspection, May 2, 2014
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming VO-435 SERIES (piston); 2,446 hours total

The flight

  • Departed from: Little Falls MN at 2:45 pm
  • Destination: Little Falls MN
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 100° at 3 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 66°F (19°C), dew point 43°F (6°C)
  • Altimeter: 30.09 inHg
  • Observation at 2:59 pm from LXL, 10 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.