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Accidents · NTSB WPR25LA059 · Final report

Boeing A75N1(PT17) accident near El Cajon, California, December 8, 2024

On December 8, 2024 at about 9:30 pm local time, a 1941 Boeing A75N1(PT17), registered N9199R, was substantially damaged in an accident during landing (landing roll) near El Cajon, California (Gillespie Fld 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 pilot’s inability to maintain directional control during landing with a flat tire.

Source: NTSB aviation accident database, copy made October 12, 2026. Docket and reports at the NTSB.

What the record shows

Date
December 8, 2024 · about 9:30 pm local time · cases in 2024
Place
El Cajon, California · Gillespie Fld · cases near this airport · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Boeing A75N1(PT17), built 1941 · all A75N1(PT17)s on the register
Registration
N9199R · registry record · serial 75-2212
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot of the tailwheel equipped airplane reported that during a formation takeoff, the airplane began to veer left, and he lifted off earlier than the lead airplane to maintain directional control. After an uneventful flight, during landing, the airplane began to track violently to the left, despite the pilot’s control inputs. The airplane exited the left side of the runway, and as it was almost stopped, veered to the right onto the runway surface, and came to rest upright. During the accident sequence, the lower left wing struck the ground, which resulted in substantial damage to the left aileron. Upon exiting the airplane, the pilot observed the left main tire was deflated and partially separated from the wheel assembly. Inspection of the runway environment revealed that there was a thick skid mark from where the airplane’s left tire touched down at the beginning of the runway.

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 on ground during landing (landing roll)
  2. Sys/Comp malf/fail (non-power) during landing (landing roll) defining event
  3. Runway excursion during landing (landing roll)
  4. Collision with terrain or object (not controlled flight into terrain) during landing (landing roll)

The NTSB's findings

  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
  • Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • Aircraft › Aircraft systems › Landing gear system › Tube › Failure other cases naming the landing gear

Pilot

  • Certificate: airline transport pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instrument: airplane
  • Flight time: 23,000 hours in all; 75 in this make and model; 4 in the last 90 days; 1 in the last 30 days; 18,000 as pilot in command
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: rear
  • Injury: no injuries

Passenger

  • Seat: frt
  • Injury: no injuries

The aircraft

  • Last inspection: annual inspection
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming R680-17/B4E (piston); 0 hours total

The flight

  • Runway 09L/, 5,342 ft by 100 ft

Weather at the time

  • Light: dawn
  • Wind: from 220° at 6 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 72°F (22°C), dew point 34°F (1°C)
  • Altimeter: 30.04 inHg
  • Observation at 1:47 pm from KSEE

Weather report (METAR): KSEE 082147Z 22006KT 10SM SKC 22/01 A3004

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

Photographs from the investigation 2 pictures from the NTSB's docket, as the NTSB released them

The NTSB's photographs with the NTSB's captions, at screen size. Open a picture to see it full size or to report one that should not be shown.

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

3 documents, released by the NTSB on May 9, 2025. 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.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/WPR25LA059.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.