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Accidents · NTSB LAX84LA206 · Preliminary: the investigation is not finished

Cessna 170B accident near Fullerton, California, March 5, 1984

On March 5, 1984, a Cessna 170B, registered N4630C, was substantially damaged in an accident near Fullerton, California. It was a personal flight under general aviation rules (Part 91). No one was hurt; 4 people were 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 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
March 5, 1984
Place
Fullerton, California
Type
Accident
Injuries
No one was hurt; 4 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 170B · all 170Bs on the register
Registration
N4630C · no longer on the register · serial 25574
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE ACFT RAN OFF THE RWY DURING LANDING. THE PLT SAID THE'RIGHT BRAKE WAS NOT FUNCTIONING PROPERLY.' THE ACFT COLLIDED WITH A RWY LIGHT AND COLLAPSED THE RIGHT MAIN GEAR.

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: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 2,214 hours in all; 758 in this make and model; 12 in the last 90 days; 9 in the last 30 days; 1,937 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 3,055 hours
  • Last inspection: annual inspection, June 1, 1983
  • Maximum gross weight: 2,200 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-360 (piston); 0 hours total

The flight

  • Departed from: PO6 Bullhead City AZ at 9:00 pm
  • Destination: FUL Fullerton CA
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 210° at 6 knots
  • Visibility: 4 statute miles
  • Sky: clear
  • Temperature: 64°F (18°C), dew point 0°F (-18°C)
  • Altimeter: 29.00 inHg

Injuries

FatalSeriousMinorNone
Crew1
Passengers3

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.