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Accidents · NTSB ANC23LA055 · Final report

Piper PA-18 accident near Palmer, Alaska, July 13, 2023

On July 13, 2023 at about 11:00 pm local time, a Piper PA-18, registered N37WP, was substantially damaged in an accident during takeoff near Palmer, Alaska. It was an instructional flight under general aviation rules (Part 91). 1 person had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The student pilot’s inadvertent application of the brakes, which resulted in the airplane nosing over.

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

What the record shows

Date
July 13, 2023 · about 11:00 pm local time
Place
Palmer, Alaska · map
Type
Accident
Injuries
1 person had minor injuries; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18 · all PA-18s on the register
Registration
N37WP · registry record · serial 18-756
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

The instructor pilot reported that he was conducting training in a tailwheel equipped airplane, and during takeoff the student pilot inadvertently applied the brakes and the airplane nosed over, resulting in substantial damage to the rudder. The instructor pilot reported that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation.

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. Nose over/nose down during takeoff defining event

The NTSB's findings

  • Personnel issues › Task performance › Use of equip/info › Aircraft control › Student/instructed pilot
  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Surface speed/braking › Incorrect use/operation
  • Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Student/instructed pilot

Pilot

  • Certificate: flight instructor, commercial pilot
  • Ratings: single-engine land; instructor: airplane single-engine; instrument: airplane
  • Flight time: 1,413.7 hours in all; 203.9 in this make and model; 127.7 in the last 90 days; 94.9 in the last 30 days; 1,364.7 as pilot in command; 798.6 on instruments
  • Last flight review: April 29, 2022
  • Medical certificate: Class 1 (with waivers/limitations)
  • Seat: rear
  • Injury: no injuries

Dual student

  • Certificate: airline transport pilot, military
  • Ratings: multi-engine land; instrument: helicopter; rotorcraft: helicopter
  • Flight time: 1,800 hours in all; 223 in the last 90 days; 14.7 in the last 30 days; 870 as pilot in command
  • Last flight review: May 19, 2023
  • Medical certificate: Class 2 (without waivers/limitations)
  • Seat: frt
  • Injury: minor injuries

The aircraft

  • Airframe total time: 7,146.8 hours
  • Last inspection: annual inspection, April 5, 2023
  • Maximum gross weight: 2,000 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-B2B (piston); 0 hours total

The flight

  • Departed from: 4AK6 Palmer AK at 9:00 pm
  • Flight plan: none
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 57°F (14°C), dew point 50°F (10°C)
  • Altimeter: 30.12 inHg
  • Observation at 3:00 pm from PAAQ

Weather report (METAR): SA 13/07/2023 22:53-> METAR PAAQ 132253Z 11005KT 10SM FEW035 SCT075 23/13 A3010 RMK AO2 SLP192 T02280133=

Injuries

FatalSeriousMinorNone
Flight crew11

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

2 documents, released by the NTSB on February 1, 2024. 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.

Other NTSB records under N37WP the same tail number, which may have belonged to a different aircraft at the time

2015-03-02ERA15CA148 · accident near Murfreesboro, TN · substantial damage · no injuries
2012-08-13ANC12CA086 · accident near Anchorage, AK · substantial damage · no injuries

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.