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Accidents · NTSB MKC86LA108 · Preliminary: the investigation is not finished

Grumman G-164A accident near Tekamah, Nebraska, May 14, 1986

On May 14, 1986 at about 2:00 pm local time, a Grumman G-164A, registered N6630, was substantially damaged in an accident near Tekamah, Nebraska. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
May 14, 1986 · about 2:00 pm local time
Place
Tekamah, Nebraska · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Grumman G-164A · all G-164As on the register
Registration
N6630 · no longer on the register · serial 760
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 PILOT STATED THAT AS HE WAS FINISHING HIS RUN SPRAYING PINE TREES AND WAS PULLING UP WHEN THE ENGINE LOST POWER. THE RIGHT WINGS STRUCK TREES AND THE AIRCRAFT NOSED OVER DURING THE FORCED LANDING.

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

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 2,029 hours in all; 1,100 in this make and model; 34 in the last 90 days; 1,835 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: frt

The aircraft

  • Last inspection: annual inspection, April 1, 1985
  • Maximum gross weight: 3,725 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: P&W R-985-AN1 (piston); 0 hours total
  • Operator: Har-Mor AG. Service,Inc.

The flight

  • Departed from: TQE Tekamah NE at 1:30 pm
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 180° at 13 knots
  • Visibility: 10 statute miles
  • Sky: scat at 25,000 ft
  • Temperature: 63°F (17°C), dew point 48°F (9°C)
  • Altimeter: 29.00 inHg
  • Observation at 2:00 pm from OMA, 35 miles away

Injuries

FatalSeriousMinorNone
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.