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Accidents · NTSB CHI03LA183 · Final report

Enstrom 280C accident near West Branch, Michigan, June 15, 2003

On June 15, 2003 at about 5:38 pm local time, a Enstrom 280C (helicopter), registered N5695D, was substantially damaged in an accident near West Branch, Michigan. It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The loss of engine power due to the fatigue failure of the connecting rod cap. A related factor was the unsuitable terrain the pilot encountered.

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

What the record shows

Date
June 15, 2003 · about 5:38 pm local time
Place
West Branch, Michigan · map
Type
Accident
Injuries
1 person was seriously injured; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Enstrom 280C · all 280Cs on the register
Registration
N5695D · registry record · serial 1210
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The helicopter impacted water during an autorotation following a loss of engine power. The pilot reported he lost engine power during initial climb and the helicopter landed upright about 75 feet off the shore in about 2-1/2 feet of water. An inspection of the helicopter confirmed flight control continuity. Both fuel tanks contained 25 gallons of fuel and the engine contained 8 quarts of oil. The main and tail rotors showed drivetrain continuity. A large hole was found in the crankcase, near the number one engine cylinder, and the number one connecting rod was protruding from the hole. Examination of the broken connecting rod cap revealed fracture features that were consistent with a fatigue-type failure. Additionally, the material encompassing the fatigue initiation point was galled along with several other areas of the bearing interface.

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; rotorcraft: helicopter
  • Flight time: 1,311 hours in all; 194 in this make and model; 23 in the last 90 days; 11 in the last 30 days
  • Last flight review: January 29, 2003
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left
  • Injury: serious injuries

The aircraft

  • Airframe total time: 768.7 hours
  • Last inspection: annual inspection, May 19, 2003; 12.1 hours since
  • Maximum gross weight: 2,350 lb
  • Seats: 3
  • Landing gear: fixed
  • Engine: Lycoming HIO-360 SER (piston); 0 hours total

The flight

  • Departed from: PVT West Branch MI at 5:20 pm
  • Destination: 1MI7 Selkirk MI
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: at 6 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 77°F (25°C), dew point 48°F (9°C)
  • Altimeter: 30.14 inHg
  • Observation at 6:55 pm from HTL, 22 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.