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Accidents · NTSB CHI99FA356 · Final report

Piper PA-28-140 accident near Clinton, Iowa, September 28, 1999

On September 28, 1999, a Piper PA-28-140, registered N5747U, was destroyed in an accident near Clinton, Iowa. It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

the pilot's continued flight into known adverse weather conditions and not maintaining altitude/clearance. Factors were the low clouds, rain, and dark night conditions.

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

What the record shows

Date
September 28, 1999
Place
Clinton, Iowa
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Piper PA-28-140 · all PA-28-140s on the register
Registration
N5747U · no longer on the register · serial 28-26568
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

The accident airplane was found in the Mississippi River. The pilot was found fatally injured. Automated Flight Service Station briefed N5747U's pilot six times and that pilot was told in each briefing that a visual flight rules flight was not recommended. Two witnesses heard an airplane fly overhead and then heard silence. Both said the weather was dark and raining. A witness said he flew in the local area, he descended into visual conditions at about 450 to 500 ft above ground level, and that conditions were consistent throughout the area. No signs of engine or airframe preimpact anomalies were found. All cylinders exhibited a thumb compression and engine control continuity was found. Both magnetos produced spark at all leads. Fuel was found in the hose leading to the carburetor and fuel exited the hose when the engine was rotated. A fuel like smell was present when the fuel tanks were recovered. Flight control continuity was found to all surfaces except to the left aileron. The left wing, outboard of the spar joint splice was not found.

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: 321 hours in all; 15 in the last 90 days; 3 in the last 30 days
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 5,836 hours
  • Last inspection: annual inspection, November 7, 1998; 375 hours since
  • Maximum gross weight: 2,150 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-320-E2A (piston); 0 hours total

The flight

  • Departed from: Y23 Chetek WI at 9:40 pm
  • Destination: VYS Peru IL
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: night, dark
  • Wind: from 010° at 12 knots
  • Visibility: 8 statute miles
  • Sky: overcast at 2,300 ft; not recorded
  • Temperature: 54°F (12°C), dew point 50°F (10°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.