SK-12T6 RA-1743G 09.08.2016

Accident date	09.08.2016
Investigation status
Aircraft registration number	RA-1743G
Place of aircraft departure
Airport of departure
Intended destination
Intended Airport of arrival
Accident site	in the Khatanga river water area of the Krasnoyarsk Tеrritory
Latitude	N 71°59'11.8''
Longitude	E 102°28'33''
Aircraft type	SK-12T6
Serial №
Aircraft operator	Private person
Aircraft owner	Private person
The date of the completion of the investigation (report)	13.01.2017
Number of fatalities	0
Victims accuracy
Degree of aircraft destruction	aircraft substantially damaged
Report	report_ra-1743g.pdf (1.45 MB)
Aviation type	GA
Works type
Note

10 august 2016

The accident involving SK-12 Orion RA-1743G private amphibian occurred in the water area of the Khatanga River, Krasnoyarsk Krai (RF) on August 9, 2016.

According to the available information, the pilot on board was injured, the aircraft was destroyed and partially sank.

The Interstate Aviation Committee has formed an Investigation team of the accident in accordance with the Russian Aviation Legislation. The Investigation team has started its work.

20 january 2017

TThe Interstate Aviation Committee Investigation team has completed the investigation of the accident involving Sk-12t6 RA-1743G single-built private amphibian aircraft occurred in the Krasnoyarsk Krai (RF) on August 9, 2016.

The crash involving Sk-12t6 RA-1743G single-built aircraft was caused by take-off with not removed gust lock of the left hand aileron.

Contributing factors were:

- non-compliance with clause 3.3.4. "Technical requirements for GA FVSP (excluding GA aerostats)" dated 15.05.2003 № НА-119-р in a part of a means to give unmistakable warning to pilot when lock is engaged;

- lack of cornets (strips) on gust-locks;

- lack of clause providing control surfaces and ailerons movement test before take-off in checklist;

- shortcomings in the documentation determining the procedure of single-built aircraft certification, where the development of checklists during single-built aircraft certification procedure is not provided.

Appropriate safety recommendations based on the investigation results were developed.