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Accidents · NTSB CHI05CA095 · Final report

Cessna 172P accident near Ann Arbor, Michigan, April 8, 2005

On April 8, 2005 at about 1:20 pm local time, a Cessna 172P, registered N777UM, was substantially damaged in an accident near Ann Arbor, Michigan. It was an instructional 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 failure of the carburetor nozzle resulting in loss of engine power and the unsuitable terrain encountered during the forced landing. A factor was the low altitude.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
April 8, 2005 · about 1:20 pm local time
Place
Ann Arbor, Michigan · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 172P · all 172Ps on the register
Registration
N777UM · registry record · serial 17275405
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

The airplane was damaged during a forced landing following a loss of engine power during a go-around. Engine runs subsequent to the accident revealed that the engine would run rough when advanced to 1,400 rpm. The engine operated throughout it's operational rpm range when fitted with a carburetor from another airplane. The accident carburetor was found to be missing the accelerator pump nozzle tube. No other discrepancies were noted.

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

Flight instructor

  • Certificate: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instrument: airplane
  • Flight time: 2,800 hours in all; 1,572 in this make and model
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Injury: no injuries

The aircraft

  • Landing gear: fixed
  • Engine: Textron Lycoming O-320 (piston); 0 hours total

The flight

  • Departed from: ARB Ann Arbor MI at 11:55 am
  • Destination: Ann Arbor MI
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew2

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.