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Accidents · NTSB LAX85LA158 · Preliminary: the investigation is not finished

Piper PA-18-180 accident near Fremont, California, February 28, 1985

On February 28, 1985 at about 6:36 pm local time, a Piper PA-18-180, registered N4363Z, was substantially damaged in an accident near Fremont, California. It was a business 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 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
February 28, 1985 · about 6:36 pm local time
Place
Fremont, California · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18-180 · all PA-18-180s on the register
Registration
N4363Z · registry record · serial 8682
Damage
Substantial damage
Flight
Business flight · general aviation rules (Part 91)

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

THE ACFT CONTACTED A BARBED WIRE FENCE AND ROUGH TERRAIN DURING AN EMERGENCY LANDING FOLLOWING A LOSS OF PWR SHORTLY AFTER TAKEOFF. THE PLT STATED THAT TWO PWR INTERRUPTIONS OCCURRED DURING THE TAKEOFF BEFORE THE FINAL PWR LOSS AND HE SUSPECTED FUEL CONTAMINATION AS THE PROBLEM.

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: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: glider; instrument: airplane; rotorcraft: glider
  • Flight time: 6,835 hours in all; 77 in this make and model; 128 in the last 90 days; 55 in the last 30 days; 6,711 as pilot in command; 3,313 on instruments
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: ctr

The aircraft

  • Airframe total time: 11,551 hours
  • Last inspection: annual inspection, June 1, 1984
  • Maximum gross weight: 1,750 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-316-A3A (piston); 0 hours total

The flight

  • Departed from: 8Q7 at 6:28 pm
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 40 statute miles
  • Sky: clear
  • Temperature: 68°F (20°C), dew point 0°F (-18°C)
  • Altimeter: 30.00 inHg

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.

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.