In October 1941, starshii leitenant Nechaev served in the 120 IAP, which was equipped with Polikarpov I-153s.

On 10 October, he claimed a Bf 109 with RS82 rockets.
It is possible that this was 4-victory pilot Feldwebel Kurt Maraun of III/JG 27, who parachuted from his stricken fighter.

Nechaev ended the war with one biplane victory.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	10/08/41		1	Bf 109 (a)	Destroyed	I-153			120 IAP
	??/??/4?		1/?	Enemy aircraft	Shared destroyed				120 IAP
	??/??/4?		1/?	Enemy aircraft	Shared destroyed				120 IAP
	??/??/4?		1/?	Enemy aircraft	Shared destroyed				120 IAP

Biplane victories: 1 destroyed.
TOTAL: 1 and 3 shared destroyed.
(a) Possibly Feldwebel K. Maraun of III/JG 27, who parachuted.

Sources:
Soviet Fighter Pilots 1936-1953 - Mikhail Bykov
Stalin's Eagles - Hans D. Seidl, 1998 Schiffer Publishing, ISBN 0-7643-0476-3
Additional information kindly provided by Ondrej Repka.