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ASN Wikibase Occurrence # 203605
Last updated: 26 November 2021
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Time:17:42 LT
Type:Silhouette image of generic BU31 model; specific model in this crash may look slightly different
CASA 1.131 Jungmann (Bü 131)
Registration: N1950M
MSN: E3B-315
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Alicante-Mutxamel Airfield, Valenciana -   Spain
Phase: Approach
Departure airport:Muchamiel Airport (LEMU)
Destination airport:Muchamiel Airport (LEMU)
Investigating agency: CIAIAC
A Bell 412SP helicopter (EC-MMC) and a CASA 1.131 Jungmann (NX=1950M) biplane were involved in a mid-air collision accident at Alicante-Mutxamiel Airfield, Spain.
The helicopter returned to the airfield after participating in firefighting work, while the biplane was making a local private flight.
According to the statement of the helicopter pilot, he made frequency position reports on the aerodrome frequency on several occasions and notified that he was on final approach to runway 30 without having received any communication during the approach by any other aircraft.
The helicopter was approaching the threshold of runway 30 and was at a height of approximately 10 m when its crew perceived an impact on the rear of the helicopter. As a result of this impact, the tail rotor of the helicopter fell off and the biplane lost control and hit the ground in an inverted position. The helicopter was destabilized, the crew managed to make an emergency landing in autorotation, reaching the ground in a level attitude although with yaw speed in a clockwise direction, and high vertical speed component.
The pilot of the biplane was transferred to the hospital and subsequently died of his injuries. The occupants of the helicopter were unharmed and left the aircraft by their own means.

The biplane had significant damage while the helicopter, in addition to the detachment of the tail rotor, also had significant damage to the main rotor blades, tail cone and skids.

The most likely cause of the accident was the failure of the Bücker to detect the helicopter while on final approach to runway 30 at the Mutxamel aerodrome. The biplane was further back and in a higher position in the approach to land on the same runway.
Contributing factors:
- the non-use of communications by the pilot of the Bücker;
- the failure by the pilot of the Bücker to fly the aerodrome pattern and flying acrobatic maneuvers in the pattern


Accident investigation:
Investigating agency: CIAIAC
Status: Investigation completed
Duration: 11 months
Download report: Final report
Safety recommendations:

Safety recommendation REC 36/18 issued by CIAIAC to Department of Transport of the Community of Valencia



Revision history:

30-Dec-2017 19:44 gerard57 Added
30-Dec-2017 19:51 harro Updated [Source, Embed code, Narrative]
30-Dec-2017 20:03 Aviación Digital Updated [Total occupants, Phase, Embed code, Narrative, Photo, ]
30-Dec-2017 20:45 Aerossurance Updated [Time, Narrative]
30-Dec-2017 21:42 Geno Updated [Aircraft type, Location, Destination airport, Source, Damage, Narrative]
31-Dec-2017 09:09 Aerossurance Updated [Location]
31-Dec-2017 10:08 Aerossurance Updated [Total fatalities, Embed code, Narrative]
31-Dec-2017 10:11 Aerossurance Updated [Time, Embed code]
31-Dec-2017 18:16 Iceman 29 Updated [Embed code]
31-Dec-2017 18:38 Iceman 29 Updated [Time, Total fatalities, Source, Embed code, Damage, Narrative]
31-Dec-2017 19:07 Iceman 29 Updated [Embed code]
01-Jan-2018 13:08 Aerossurance Updated [Location, Embed code, Narrative]
02-Jan-2018 12:08 Iceman 29 Updated [Aircraft type, Plane category]
02-Jan-2018 12:08 Iceman 29 Updated [Source]
02-Jan-2018 22:44 Aerossurance Updated [Source, Embed code, Narrative]
02-Jan-2018 22:47 Aerossurance Updated [Total fatalities]
02-Jan-2018 22:50 Aerossurance Updated [Embed code]
03-Jan-2018 13:25 Aerossurance Updated [Source, Embed code]
03-Jan-2018 15:52 Geno Updated [Aircraft type, Registration, Cn, Source]
04-Jan-2018 20:29 harro Updated [Aircraft type, Narrative, Plane category]
10-Jan-2018 19:38 harro Updated [Time, Phase, Departure airport, Source, Narrative]
25-Nov-2018 12:36 harro Updated [Narrative, Accident report, ]
28-Dec-2018 14:18 Aerossurance Updated [Registration]
28-Dec-2018 14:19 Aerossurance Updated [Narrative]
30-Dec-2018 10:31 Aerossurance Updated [Source]
30-Dec-2020 09:49 Aerossurance Updated [Departure airport, Destination airport, Embed code, Accident report]

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