Date:	Friday 19 August 2011
Time:	17:15 LT
Type:	AgustaWestland AW139
Owner/operator:	Senior Táxi Aéreo
Registration:	PR-SEK
MSN:	31081
Year of manufacture:	2007
Fatalities:	Fatalities: 4 / Occupants: 4
Aircraft damage:	Written off (damaged beyond repair)
Category:	Accident
Location:	Campos Basin, offshore Macaé -   Brazil
Phase:	En route
Nature:	Offshore
Departure airport:	P65 offshore oil platform
Destination airport:	Macaé, RJ (SBME)
Investigating agency:	CENIPA
Confidence Rating:	Information verified through data from accident investigation authorities

Narrative:
The crew declared an emergency with hydraulic problems shortly before contact with the helicopter was lost. When the wreckage was found, evidence was shown of tail rotor blade failure. Sank in waters with a recorded depth of 100 meters.

[LINK NOT WORKING ANYMORE:http://www.aer.mil.br/portal/capa/index.php?mostra=8193]
http://www.abraphe.org.br/sem-categoria/acidente-em-macae-pr-sek
[LINK NOT WORKING ANYMORE:http://www.adn.es/internacional/20110821/NWS-0011-Petrobras-helicoptero-precipito-cuerpos-rescata.html]
https://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20110826X75418&key=1 - refers to PT-SEK
https://www.flightglobal.com/news/articles/aw139s-temporarily-grounded-in-brazil-following-crash-361144/_/
http://easa.europa.eu/system/files/dfu/events-docs-2012-12-05-Considerations-on-Helicopter-Airworthiness---revMM_20121204_Final.pdf
http://www.abraphe.org.br/wp-content/uploads/2011/08/PR-SEK-Relat%C3%B3rio-de-Seguran%C3%A7a-de-Voo.pdf
https://ad.easa.europa.eu/ad/2011-0156-E
http://www.agustawestland.com/sites/default/files/139-265.pdf
http://sistema.cenipa.aer.mil.br/cenipa/paginas/relatorios/rf/pt/RF_A-546CENIPA2015_PR-SEK_.pdff

Date/time	Contributor	Updates
20-Aug-2011 07:35	Anon.	Added
20-Aug-2011 07:45	TB	Updated [Aircraft type, Cn, Operator, Location, Departure airport]
20-Aug-2011 07:50	TB	Updated [Time, Damage]
20-Aug-2011 12:50	TB	Updated [Location]
20-Aug-2011 23:20	Black Typhoon	Updated [Time, Aircraft type, Destination airport, Damage]
21-Aug-2011 03:12	TB	Updated [Aircraft type, Source, Narrative]
29-Aug-2011 11:17	Anon.	Updated [Source, Narrative]
30-Jan-2013 08:36	TB	Updated [Location, Source, Narrative]
09-Sep-2014 12:45	Aerossurance	Updated [Nature, Source, Narrative]
30-Apr-2017 07:26	Aerossurance	Updated [Location]
10-Jun-2020 21:55	Aerossurance	Updated [Source]
14-Jun-2021 17:52	Lucas.L	Updated [Destination airport]
14-Jun-2021 17:53	harro	Updated [Source, Accident report]
14-Jun-2021 17:54	harro	Updated [Category]