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Accidents · NTSB WPR16LA106 · Final report

Boeing B75N1 accident near Winslow, Arizona, May 12, 2016

On May 12, 2016, a 1943 Boeing B75N1, registered N56200, was substantially damaged in an accident during initial climb near Winslow, Arizona (Winslow-Lindbergh Rgnl airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The partial loss of engine power during takeoff initial climb in high-density altitude conditions for reasons that could not be determined because a postaccident examination of the airplane and engine revealed no anomalies.

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

What the record shows

Date
May 12, 2016
Place
Winslow, Arizona · Winslow-Lindbergh Rgnl · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Boeing B75N1 N1, built 1943 · all B75N1s on the register
Registration
N56200 · registry record · serial 757813
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The private pilot reported that, earlier in the day, she had flown three flights, totaling about 5 hours of flight time, which included uneventful takeoffs from two airports with a higher density altitude than that which existed at the accident airport; the calculated density altitude at the time of the accident was about 7,223 ft. The pilot reported that, before takeoff for the accident flight, she conducted an engine run-up and pretakeoff checks, which included leaning the mixture to account for the density altitude. She also conducted a static-power check, which was in the normal range. The pilot reported that, during takeoff for the personal cross-country flight, the airplane accelerated and climbed out normally with the tachometer indicating 2,250 rpm. As the airplane climbed to about 50 ft above ground level, the engine began to lose power, and the airplane started to descend. The pilot turned the airplane left to maintain clearance from obstacles and verified the throttle, mixture, propeller, fuel, and carburetor heat settings. Subsequently, the airplane struck the ground and rolled about 20 ft, the right main landing gear impacted vegetation, and the airplane cart-wheeled. The pilot reported that, just before landing, she observed the tachometer indicating 2,000 rpm. It is likely that the engine's partial loss of power, in combination with the high-density altitude, prevented the airplane from being able to maintain a positive climb rate during takeoff. Postaccident examination of the airplane and engine run did not reveal any evidence of any preexisting anomalies that would have precluded normal operation; therefore, the reason for the partial loss of engine power could not be determined.

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 engine power (partial) during initial climb defining event
  2. Off-field or emergency landing during initial climb
  3. Collision with terrain or object (not controlled flight into terrain) during initial climb

The NTSB's findings

  • cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
  • Environmental issues › Conditions/weather/phenomena › Temp/humidity/pressure › High density altitude › Effect on operation

Pilot

  • Certificate: private
  • Ratings: single-engine land
  • Flight time: 1,750 hours in all; 450 in this make and model; 26 in the last 90 days; 23 in the last 30 days; 1,400 as pilot in command; 300 on instruments
  • Last flight review: June 2, 2015
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rear
  • Injury: no injuries

The aircraft

  • Airframe total time: 454 hours
  • Last inspection: annual inspection, March 21, 2016; 23.4 hours since
  • Landing gear: fixed
  • Engine: Lycoming R-680-E3B (piston); 0 hours total

The flight

  • Departed from: INW Winslow AZ
  • Destination: Phoenix AZ
  • Flight plan: none
  • Runway 29, 7,100 ft by 150 ft

Weather at the time

  • Light: daylight
  • Wind: from 350° at 7 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 79°F (26°C), dew point 34°F (1°C)
  • Altimeter: 30.12 inHg
  • Observation at 11:56 pm from KINW, 1 miles away

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

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

3 documents, released by the NTSB on August 31, 2016. 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.