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ASN Wikibase Occurrence # 234842
Last updated: 4 February 2021
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Time:15:31 LT
Type:Silhouette image of generic AS65 model; specific model in this crash may look slightly different
Aérospatiale SA 365N Dauphin 2
Owner/operator:National Airborne Service Corps (NASC)
Registration: NA-103
C/n / msn: 6444
Fatalities:Fatalities: 0 / Occupants: 5
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Kaohsiung International Airport -   Taiwan
Phase: Landing
Departure airport:Kaohsiung International Airport (KHH/RCKH)
Destination airport:Kaohsiung International Airport (KHH/RCKH)
Investigating agency: TTSB
The National Air Service Corps of the Ministry of the Interior (NASC),AS-365 N2 helicopter, registration NA-103, took off from Kaohsiung Airport at about 14:05. The co-pilot sits in the right seat as the pilot flying, and the captain sits in the left seat as the pilot monitoring, conducted the annual recurrent training in Liugui airspace. The aircraft arrived at the destination at approximately 14:25 hours and performed the training between the altitude of 4,000 feet and 1,000 feet. At about 15:01, they completed the training and returned to base. At about 15:16, the flight crew contacted Kaohsiung Tower and requested to perform the emergency procedures include governor failure and the tail rotor failure during approach at the runway. The tower approved and informed that Runway 09 was in use, the wind direction was 290, and the wind speed was 9 knots. There were 1 pilot, 1 co-pilot, and 3 crew members on board. After approaching the runway at about 15:30 hours, the aircraft lost control to the right at low altitude and low speed.
The main rotor touched the runway surface and crashed on the runway. No personnel were injured.

Findings related to the probable cause
1. The captain had insufficient knowledge of the characteristics of the tail rotor failure and complete operating procedures. When performing the tail rotor failure operation, he failed to comply with the operating procedures and grasp operating principles. In addition, the captain did not place his feet on the anti-torque pedals during the exercise, which resulted in not being able to correct immediately when the aircraft deviated to the right, causing the main rotor to hit the runway surface and a crash on the runway.


Accident investigation:
Investigating agency: TTSB
Status: Investigation completed
Duration: 10 months
Download report: Final report


Revision history:

07-Apr-2020 16:04 gerard57 Added
07-Apr-2020 16:08 harro Updated [Aircraft type]
07-Apr-2020 16:12 harro Updated [Aircraft type, Registration, Cn, Source, Embed code]
07-Apr-2020 16:43 Aerossurance Updated [Operator, Nature, Departure airport, Destination airport, Embed code, Narrative]
09-May-2020 17:06 Aerossurance Updated [Time, Source]
31-Jan-2021 14:07 Aerossurance Updated [Source, Narrative]
03-Feb-2021 14:38 harro Updated [Location, Nature, Departure airport, Destination airport, Source, Narrative, Accident report]
04-Feb-2021 07:59 Aerossurance Updated [Narrative, Accident report]
04-Feb-2021 08:07 Aerossurance Updated [Embed code, Accident report]
04-Feb-2021 08:09 Aerossurance Updated [Embed code, Accident report]
04-Feb-2021 08:09 Aerossurance Updated [Accident report]
04-Feb-2021 08:11 Aerossurance Updated [Embed code, Narrative, Accident report]

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