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LOS Analyzer

Antenna tower · 2026

Safe Lock Storage BU 827277

Belleville, IL · near Scott Afb/Midamerica St Louis (6.0 mi)

Determination of no hazardDetermined - No Hazard110 ft AGL

What this outcome means

The FAA studied the proposal and concluded it would not be a hazard to air navigation. A no-hazard determination is not permanent — it carries an expiration date, and if the structure is not built by then the case has to be re-filed.

The proposal, in the filer's words

"Flagless pole converted to monopole. Adding frequencies and updating description no other changes."

Filing details

Case number (ASN)
2026-AGL-4550-OE
Structure
Safe Lock Storage BU 827277
Type
Pole / mono
Category
Antenna tower
Height above ground
110 ft
Height above sea level
683 ft
Site elevation
573 ft
Notice of
Alteration
Duration
Permanent
Marking & lighting
—

Timeline

Filed
March 12, 2026
Determined
March 18, 2026
Determination expires
—

Who filed it

Sponsor
Crown Castle (DK)
Representative
Crown Castle

Names are shown as they appear in the FAA's public record. How we handle names

See every 2026 filing by Crown Castle (DK) →

Location

Coordinates
38.542092, -89.945808
Degrees / minutes / seconds
38°32'31.5"N 89°56'44.9"W
County
St. Clair

See every 2026 filing near Scott Afb/Midamerica St Louis →

About this record

This page is a readable copy of a public record published by the FAA's Obstruction Evaluation / Airport Airspace Analysis system. It is not the official record and may lag it. For the authoritative case status, search this ASN at the FAA's OE/AAA portal. If something here is wrong, email support@idea-engine.studio and we will correct it.

Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.

Screening a structure of your own?

Check Part 77 and the tower's line of sight before you file

LOS Analyzer screens a proposed structure against FAA Part 77 surfaces and the control tower's sightline to the runway, terrain-aware, in minutes. It is a preliminary screening — not an FAA determination and not a substitute for a licensed engineering review.