Step (air base)
air base in Chita, Russia

Step (also Olovyannaya) is an air base in Chita, Russia located 14 km northwest of Yasnogorsk. It is a large air base with two revetment areas and numerous military fortifications. It is near an SS-11 missile field that was dismantled in the mid-1990s.
The 849th Assault Aviation Regiment, part of the 253rd Assault Aviation Division, was stationed at Step up until 1956.
Units stationed at Step/Olovyannaya include:
6th Aviation Regiment of Fighter-Bombers (6 APIB) flying Sukhoi Su-17 in the late 1980s; under 23rd Air Army, Transbaikal Military District.
58th Fighter-Bomber Aviation Regiment (58 APIB) flying Su-17M3 and L-29 aircraft in the late 1980s, and receiving MiG-27 in the early 1990s. It was under 23rd Air Army (Trans-Baikal).
266th Independent Shturmovik Aviation Regiment (266th Assault Aviation Regiment, 266 OShAP) flying Sukhoi Su-25 aircraft. Disbanded circa 2009.
The base appears to have been closed after a boiler room fire in December 2009.
The public source identifies “Step (air base)” as air base in Chita, Russia. This brief keeps that definition visible, then builds a research path around Step, base and Chita.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Step (air base)”, the useful work is to connect “air base in Chita, Russia” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 12, 2026. The linked authority identifier is Q7607969. Authority coordinates are 51.017, 115.433. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1956 and 2009.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Step (air base)”, its source revision and the description used here.
- Expand the search: follow Step (air base) primary sources, Step (air base) archive and Step research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Step (air base)”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Step (air base)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.