Nikolay Khromov in 1920.

In 1940, he graduated from Serpukhovskaya Flight School.

When Germany invaded the Soviet Union on 22 June 1941, mladshiy leitenant Khromov served in 12 OIAE-KBF. This unit was at the time equipped with Polikarpov I-153s.

The I-153s from 12 OIAE-KBF was in combat with Ju 88s on 22 September 1941. Mladshiy leitenant Ivan Gorelikov, Khromov and Grigoriy Kraynov all claimed a Ju 88 shared ”in group” and it’s thus possible that this was the same Ju 88.
Khromov also claimed a shared Hs 126 together with another pilot during the day.

In May 1943, he left 12 OIAE-KBF and was posted to 11 IAP-KBF.

On 23 September 1943, he was wounded during an emergency landing and hospitalized. He didn’t re-join 11 IAP-KBF upon recovery.

In April 1944, he was posted to 43 IAP-ChF.

He left 43 IAP-ChF in September 1944 when the unit was taken off operations since the Black Sea was behind the combat zone.

In August 1945, 43 IAP-ChF was formally included in the active army, but actually did not have time to take part in hostilities against Japan, which ended in September.

Khromov ended the war with 1 biplane victory and a total of 2.
During his combat career, he flew I-153, MiG-3 and Kingcobra.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	15/07/41		1	Ju 88	Destroyed	I-153			12 OIAE-KBF
	22/09/41		1/2	Hs 126	Shared destroyed	I-153			12 OIAE-KBF
	22/09/41		1/?	Ju 88	Shared destroyed	I-153			12 OIAE-KBF
	1942
2	03/07/42		1	He 111	Destroyed	MiG-3			12 OIAE-KBF
	01/09/42		1/2	Ju 88	Shared destroyed	MiG-3			12 OIAE-KBF
	22/10/42		1/2	Bf 109	Shared destroyed	MiG-3			12 OIAE-KBF
	23/11/42		1/2	He 111	Shared destroyed	MiG-3			12 OIAE-KBF

Biplane victories: 1 and 2 shared destroyed.
TOTAL: 2 and 5 shared destroyed.

Sources:
All aces of Stalin 1936-1953 – Mikhail Bykov, 2014
Soviet Aces 1936-1953
Soviet Fighter Pilots 1936-1953 - Mikhail Bykov