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Accidents · NTSB LAX84LA491 · Preliminary: the investigation is not finished

Ryan-Navion NAV-4-1908 accident near Milpitas, California, September 22, 1984

On September 22, 1984 at about 4:40 pm local time, a Ryan-Navion NAV-4-1908, registered N4908K, was substantially damaged in an accident near Milpitas, California (Fremont Ca 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

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
September 22, 1984 · about 4:40 pm local time
Place
Milpitas, California · Fremont Ca · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Ryan-Navion NAV-4-1908
Registration
N4908K · no longer on the register · serial 1908
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE ACFT MADE A FORCED LANDING IMMEDIATELY AFTER TAKEOFF WHEN THE ENGINE QUIT AT ABOUT 220 FT AGL. THE ACFT WAS LANDED IN A GARBAGE DUMP. POST ACCIDENT INVESTIGATION REVEALED NO DISCREPANCIES IN THE ACFT TO ACCOUNT FOR THE ENGINE STOPPAGE.THE REPORTED TEMPERATURE WAS 73 DEGREES F AND THE DEW POINT WAS 50 DEGREES F.

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: 354 hours in all; 153 in this make and model; 40 in the last 90 days; 20 in the last 30 days; 283 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 3,366 hours
  • Last inspection: annual inspection, June 8, 1984; 60 hours since
  • Maximum gross weight: 2,750 lb
  • Seats: 4
  • Landing gear: retractable
  • Engine: Continental E-225 (piston); 0 hours total

The flight

  • Departed from: Q59 Fremont CA at 4:38 pm
  • Destination: SNS Salinas CA
  • Flight plan: none
  • Runway 31, 2,310 ft

Weather at the time

  • Light: daylight
  • Wind: from 200° at 5 knots
  • Visibility: 20 statute miles
  • Sky: clear
  • Temperature: 73°F (23°C), dew point 50°F (10°C)
  • Altimeter: 29.00 inHg
  • Observation at 4:45 pm from SJC, 6 miles away

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.