Aleksandr Pachin was born in 1918.

In June 1941, Pachin served as a pilot in the 127 IAP of the 11 SmAD.

On 22 June 1941 he claimed one victory when he rammed a Ju 87 in his Polikarpov I-153 near Grodno between 10:00-11:00.
The 127 IAP made claims for 20 enemy planes on 180 sorties on the first day of the German invasion. In fact German losses had been quite low that day, amounting to perhaps a tenth of the total Soviet claims, the general chaos and heat of combat leading to some disproportionate overclaiming.

Pachin ended the war with 1 victory claimed while flying biplanes.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	22/06/41	10:00-11:00	1	Ju 87 (a)	Destroyed	I-153		Grodno area	127 IAP

Biplane victories: 1 destroyed.
TOTAL: 1 destroyed.
(a) Claimed in a “taran” ramming attack.

Sources:
Black Cross/Red Star Volume I - Christer Bergström and Andrey Mikhailov, 2000 Pacifica Military History, ISBN 0-935553-48-7
Stalin's Eagles - Hans D. Seidl, 1998 Schiffer Publishing, ISBN 0-7643-0476-3
Sturmovik Technika
Additional information kindly provided by Yuri Shakhov.