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Accidents · NTSB SEA84LA231 · Preliminary: the investigation is not finished

Amateur-built QUICKIE II accident near Twin Falls, Idaho, September 19, 1984

On September 19, 1984 at about 1:49 am local time, a amateur-built QUICKIE II, registered N42Q, was substantially damaged in an accident near Twin Falls, Idaho (Twin Falls City airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
September 19, 1984 · about 1:49 am local time · cases in 1984
Place
Twin Falls, Idaho · Twin Falls City · cases near this airport · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Amateur-built QUICKIE II
Registration
N42Q · registry record · serial 2290
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT SAID THAT THE ACFT PORPOISED 2 OR 3 TIMES AFTER INITIAL TOUCHDOWN. AFTER BOUNCING, THE ACFT VEERED TO THE RT, GROUND LOOPED AND NOSED OVER AFTER CONTACTING THE SOFT GROUND OFF THE SIDE OF THE RWY.

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: single-engine land
  • Flight time: 380 hours in all; 5 in this make and model; 3 in the last 90 days; 320 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 28 hours
  • Last inspection: annual inspection, April 8, 1984; 28 hours since
  • Maximum gross weight: 1,000 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Revmaster 2100DQ (piston); 0 hours total

The flight

  • Departed from: TWF Twin Falls ID at 1:00 am
  • Destination: TWF Twin Falls ID
  • Flight plan: none
  • Runway 6, 7,151 ft by 150 ft

Weather at the time

  • Light: dusk
  • Visibility: 40 statute miles
  • Sky: scat at 12,000 ft
  • Temperature: 72°F (22°C), dew point 43°F (6°C)
  • Altimeter: 30.00 inHg
  • Observation at 1:49 am from TWF

Injuries

FatalSeriousMinorNone
Crew1

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.

Connections how this case links to the rest of the register

Aircraft
Place
Analytics

The whole map of how records connect · these connections as data: /graph/accident/SEA84LA231.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.