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Accidents · NTSB WPR20LA128 · Final report

Piper PA31T accident near Billings, Montana, April 20, 2020

On April 20, 2020 at about 3:50 pm local time, a 1980 Piper PA31T, registered N926K, was destroyed in an accident during initial climb near Billings, Montana (Billings Logan Intl airport). It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The degraded airplane performance after takeoff for reasons that could not be determined from available evidence.

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

What the record shows

Date
April 20, 2020 · about 3:50 pm local time
Place
Billings, Montana · Billings Logan Intl · map
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Piper PA31T 1, built 1980 · all PA31Ts on the register
Registration
N926K · no longer on the register · serial 31T8004046
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

Air traffic control communications revealed that the pilot requested to take off from the departure runway so that he could perform traffic pattern work and return for a landing on the left adjacent runway. Shortly after takeoff and while departing to the west, the pilot was instructed twice to enter the left traffic pattern, with no response. Radar data showed the airplane departing the runway and remaining on runway centerline heading for the length of the flight. The airplane climbed to about 100 ft above ground level and the airplane’s groundspeed increased to 81 knots soon after departure then decreased to 70 knots before dropping off radar. Witnesses reported seeing the airplane depart the airport at a low climb rate and slow airspeed. Shortly after, the airplane flew out of view and a column of smoke was seen on the horizon. Accident site documentation identified symmetrical propeller strikes on the ground consistent with the airplane impacting the ground in a shallow, nose-up, wings level attitude. Examination of the airframe and both engines did not reveal any evidence of a preaccident mechanical failure or malfunction that would have precluded normal performance to allow for sufficient airspeed and climb rate after takeoff. Both the engines exhibited damage signatures consistent with the engines producing symmetrical power at impact. The pilot’s most recent flight in the accident airplane was 2 months before the accident. The pilot was reported to have problems with understanding the accident airplane’s avionics system; however, it is unknown if he was having these problems during the accident flight. Review of the pilot’s medical history revealed no significant medical concerns or conditions that could pose a hazard to flight.

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. Collision during takeoff/land during initial climb defining event

The NTSB's findings

  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Climb rate › Not attained/maintained
  • Not determined › Not determined › (general) › (general) › Unknown/Not determined

Pilot

  • Certificate: airline transport pilot, commercial pilot
  • Ratings: multi-engine land; single-engine land; single-engine sea; instructor: airplane multi-engine; instructor: airplane single-engine; instrument: airplane
  • Flight time: 12,955 hours in all
  • Medical certificate: Class 1 (with waivers/limitations)
  • Seat: left
  • Injury: fatal

The aircraft

  • Airframe total time: 4,696 hours
  • Last inspection: type not recorded, November 25, 2019
  • Landing gear: retractable
  • Engine 1: Pratt & Whitney PT6A-11 (turboprop); 0 hours total
  • Engine 2: Pratt & Whitney PT6A-11 (turboprop); 0 hours total
  • Fire on the ground

The flight

  • Departed from: BIL Billings MT
  • Destination: BIL Billings MT
  • Flight plan: none
  • Runway 28L, 3,800 ft by 75 ft

Weather at the time

  • Light: daylight
  • Wind: from 290° at 14 knots
  • Visibility: 10 statute miles
  • Sky: a few clouds at 6,000 ft
  • Temperature: 57°F (14°C), dew point 28°F (-2°C)
  • Altimeter: 29.97 inHg
  • Observation at 3:53 pm from KBIL, 2 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

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

15 documents, released by the NTSB on November 10, 2022. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

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.