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Accidents · NTSB SEA99LA004 · Final report

Piper PA-18-150 accident near Billings, Montana, October 20, 1998

On October 20, 1998 at about 8:15 pm local time, a Piper PA-18-150, registered N335PA, was substantially damaged in an accident near Billings, Montana (Billings Logan Intl 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

Directional control was not maintained. Inadequate remedial action was a factor.

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

What the record shows

Date
October 20, 1998 · about 8:15 pm local time
Place
Billings, Montana · Billings Logan Intl · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18-150 · all PA-18-150s on the register
Registration
N335PA · registry record · serial 18-7909158
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 during the landing roll, the airplane began to fishtail. He stated that he tried to stop the fishtail effect with rudder control, however, the condition worsened. He then applied the brakes and the airplane ground-looped to the left. The right wing contacted the surface before the airplane came to rest off the side 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

Pilot

  • Certificate: private
  • Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane
  • Flight time: 2,087 hours in all; 68 in this make and model; 90 in the last 90 days
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: frt

The aircraft

  • Airframe total time: 1,560 hours
  • Last inspection: annual inspection, August 14, 1998; 60 hours since
  • Maximum gross weight: 1,625 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-A2B (piston); 0 hours total

The flight

  • Departed from: Absarokee MT at 7:00 pm
  • Flight plan: none
  • Runway 28L, 3,800 ft by 75 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 180° at 7 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 54°F (12°C), dew point 27°F (-3°C)
  • Altimeter: 30.00 inHg
  • Observation at 7:56 pm from BIL

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

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.