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Accidents · NTSB GAA18CA579 · Final report

Piper PA28 accident near Porterville, California, August 31, 2018

On August 31, 2018 at about 6:10 pm local time, a 1980 Piper PA28, registered N8172N, was substantially damaged in an accident during landing (landing roll) near Porterville, California (Porterville Muni airport). It was a personal flight under general aviation rules (Part 91). 2 people had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain directional control during the landing roll.

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

What the record shows

Date
August 31, 2018 · about 6:10 pm local time
Place
Porterville, California · Porterville Muni · map
Type
Accident
Injuries
2 people had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Piper PA28 181, built 1980 · all PA28s on the register
Registration
N8172N · registry record · serial 28-8090261
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot reported that she initiated the landing flare and that the airplane floated about 100 ft and landed normally. About 400 ft into the landing roll, the airplane veered right, exited the right side of the runway, and collided with taxiway lights before coming to rest. The airplane sustained substantial damage to the lower fuselage intermediate bulkhead. The pilot reported that, during landing, the windsock indicated "no wind." However, after the accident, she and her passenger saw dust devils close to the runway. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. The airport's METAR reported that, about the time of the accident, the wind was variable at 6 knots. The pilot landed the airplane on runway 30.

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) defining event
  2. Runway excursion during landing (landing roll)
  3. Collision with terrain or object (not controlled flight into terrain) during landing (landing roll)

The NTSB's findings

  • cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
  • Environmental issues › Conditions/weather/phenomena › Wind › Dust devil/whirlwind › Effect on operation
  • Environmental issues › Physical environment › Object/animal/substance › Runway/taxi/approach light › Contributed to outcome

Pilot

  • Certificate: flight instructor, commercial pilot
  • Ratings: single-engine land; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
  • Flight time: 3,455 hours in all; 113 in this make and model; 29 in the last 90 days; 12 in the last 30 days; 3,455 as pilot in command; 2,235 on instruments
  • Last flight review: June 9, 2018
  • Medical certificate: Class 2 (without waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 7,766 hours
  • Last inspection: annual inspection, January 12, 2018
  • Maximum gross weight: 1,950 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-360-A4M (piston); 2,476 hours total

The flight

  • Departed from: SEE El Cajon CA at 4:50 pm
  • Destination: PTV Porterville CA
  • Flight plan: none
  • Runway 30, 5,960 ft by 150 ft

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 73°F (23°C), dew point 57°F (14°C)
  • Altimeter: 30.03 inHg
  • Observation at 5:56 pm from KPTV

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

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

2 documents, released by the NTSB on May 1, 2019. 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.