ASN logo
ASN Wikibase Occurrence # 75201
Last updated: 23 September 2021
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Time:13:12 UTC
Type:Silhouette image of generic S76 model; specific model in this crash may look slightly different
Sikorsky S-76C+
Owner/operator:Japan Coast Guard (JCG)
Registration: JA6903/MH903
MSN: 760483
Fatalities:Fatalities: 0 / Occupants: 6
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:52 km WSW off Niigata (KIJ) -   Japan
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:Niigata Airport (KIJ/RJSN)
Destination airport:
Investigating agency: ARAIC
Lost engine power whilst hovering over a Coast Guard ship. The helicopter collided with the ship, fell into the water and sank.

In the accident, while conducting the rescue hoist training, in which the aircraft was hoisting up a personnel from the ship deck, the aircraft’s No.1 engine failed, followed by ditching and capsizing, and occupants of the aircraft sustained serious injuries.

It is considered possible that ice chunks were sucked into the engine leading to an engine failure, however, the cause of the failure was not determined because the engine of the aircraft was not recovered.


Accident investigation:
Investigating agency: ARAIC
Status: Investigation completed
Download report: Final report

Revision history:

18-Jun-2010 12:34 TB Added
21-Jun-2010 13:06 TB Updated [Location, Source, Narrative]
22-Aug-2014 14:15 Aerossurance Updated [Source, Narrative]
22-Mar-2015 14:26 TB Updated [Location, Departure airport]
24-Jun-2017 17:52 Aerossurance Updated [Narrative]
28-Jan-2021 20:24 harro Updated [Source, Accident report]
05-Aug-2021 09:05 TB Updated [Operator, Source]

Corrections or additions? ... Edit this accident description