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Accidents · NTSB CHI85LA102 · Preliminary: the investigation is not finished

Cessna 421C accident near Bay City, Michigan, February 8, 1985

On February 8, 1985 at about 4:45 pm local time, a Cessna 421C, registered N5484G, was substantially damaged in an accident near Bay City, Michigan (James Clements airport). It was an executive or corporate 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
February 8, 1985 · about 4:45 pm local time
Place
Bay City, Michigan · James Clements · map
Type
Accident
Injuries
No one was hurt; 4 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 421C · all 421Cs on the register
Registration
N5484G · no longer on the register · serial 421C0231
Damage
Substantial damage
Flight
Executive or corporate flight · general aviation rules (Part 91)

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

THE ACFT COLLODED WITH A SNOWBANK DURING LNDG. THE PLT & PASSG STATED THAT A LNDG GEAR CUGHT IN SNOW PILED AT AN INTERSECTION FROM PLOWING. THE INDUCED DRAG VEERED THE ACFT OFF THE RWY TO THE LEFT.

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; instrument: airplane
  • Flight time: 1,771 hours in all; 586 in this make and model; 28 in the last 90 days; 1,637 as pilot in command
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 20,998 hours
  • Last inspection: annual inspection, January 9, 1985; 1 hours since
  • Maximum gross weight: 7,450 lb
  • Seats: 8
  • Landing gear: retractable
  • Engine: Continental GTSIO-520-L (piston); 0 hours total

The flight

  • Departed from: MOP Mt. Pleasant MI at 4:30 pm
  • Flight plan: none
  • Runway 18, 3,200 ft by 70 ft

Weather at the time

  • Light: daylight
  • Wind: from 290° at 18 knots
  • Visibility: 12 statute miles
  • Sky: clear
  • Temperature: 12°F (-11°C), dew point 3°F (-16°C)
  • Altimeter: 30.00 inHg
  • Observation at 4:53 pm from MBS, 30 miles away

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.