The U.S. aircraft register, updated daily
Accidents · NTSB ERA10WA507 · Preliminary: the investigation is not finished

Robinson R44 accident near Itanhaem, Br, September 10, 2010

On September 10, 2010 at about 2:45 pm local time, a Robinson R44 (helicopter), registered PTYON, was substantially damaged in an accident during enroute (cruise) near Itanhaem. It was a flight of an unrecorded kind under non-U.S. private rules. 2 people were killed.

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 10, 2010 · about 2:45 pm local time
Place
Itanhaem, Brazil · map
Type
Accident
Injuries
2 people were killed.
Weather
not recorded
Aircraft
Robinson R44 · all R44s on the register
Registration
PTYON · no longer on the register · serial 10674
Damage
Substantial damage
Flight
Flight of an unrecorded kind · non-U.S. private rules

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

On September 10, 2010, about 1445 Universal Coordinated Time (UTC), a Robinson Helicopters R44, Brazilian registration PT-YON, operated by AM Transportes Ltda ME, crashed into mountainous terrain near Itanhaem, State of Sao Paulo, Brazil. The flight was en route from Peruibe, state of Sao Paulo (SSMW) to the city of Sao Paulo (SBMT). The pilot and one passenger were killed. This investigation is under jurisdiction of the Government of Brazil. This report is for informational purposes only and contains information released by the Government of Brazil. For further information contact: Aeronautical Accident Prevention and Investigation Center SHIS – QI 05 – VI COMAR Brasilía-DF, Brazil 71.615-600 Tel: +55 61 3364 8800 Fax: +55 61 3365 1004 dipaa@cenipa.aer.mil.br

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

What happened, in order

  1. Unknown or undetermined during enroute (cruise) defining event

Crew member

No details recorded.

The aircraft

  • Maximum gross weight: 2,400 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-540-F1B5 (piston); 0 hours total

The flight

  • Departed from: SSMW Peruibe
  • Destination: SBMT Sao Paulo
  • Flight plan: not recorded

Weather at the time

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

Injuries

FatalSeriousMinorNone
Flight 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.