[Larry deZeng]

Can someone say with certainty that the 10 March 1942 sabotage incident took place at Nikolajew/Ost I, which was the principal airfield at Nikolayev?

Nikolajew/Ost I (UKR) (e. Nikolayev/East I; ukr. Mykolayiv) (46 55 N – 32 05 E)
General: airfield in S Ukraine 5 km (9.2 km?) ESE of Nikolayev. Rated for bombers and employed as the principal airfield at Nikolayev for multi-engine aircraft. Airfield captured by 16th Panzer Div. 13 Aug 41. Designated a winter air base and a total of 16 additional single-aircraft hangars for bombers ordered built (Oct-Nov 41), including 3 heated. Major transient airfield for east-west military flights.
Nikolajew/West (UKR) (e. Nikolayev/West; ukr. Mykolayiv) (c. 46 57 N – 31 56 E)
General: landing ground in S Ukraine on the western outskirts of the city. Rated for fighters. Lw. use from 19 Aug 41, but evidence of use after Sep 41 not found.

Also:

Nikolajew/Nord (UKR) (e. Nikolayev/North; ukr. Mykolayiv) (47 02 N – 31 57 E)
General: airfield in S Ukraine 8.8 km N of Nikolayev. Rated for bombers. First mention of Lw. use 4 Apr 42.
Nikolajew/Ost II (UKR) (e. Nikolayev/East II; ukr. Mykolayiv) (c. 46 56 N – 32 08 E)
General: airfield in S Ukraine c. 9.2 km or 12 km E of Nikolayev. Rated for fighters. First mention of Lw. use 4 Apr 42.
Nikolajew (See) (UKR) (e. Nikolayev (Sea); ukr. Mykolayiv) (c. 46 56 N – 32 00 E)
General: seaplane anchorage c. 3 km SE of the city center.