Antenna tower · 2026
Mt Zion
Gaithersburg, MD · near Montgomery County Airpark (3.7 mi)
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
"Current Notes 5/5/2026: The Client's ASN# 2023-AEA-14993-OE has expired. Filing to obtain an updated determination of no hazard. \nPrevious Filing Proposal Notes in History: Update to existing determination 2023-AEA-13278-OE. The height of the proposed tower has increased. The new tower will replace a nearby tower that was previous approved under 2006-AEA-4400-OE the existing tower will be dismantled."
Filing details
- Case number (ASN)
- 2026-AEA-5909-OE
- Structure
- Mt Zion
- Type
- Tower / antenna
- Category
- Antenna tower
- Height above ground
- 233 ft
- Height above sea level
- 734 ft
- Site elevation
- 501 ft
- Notice of
- Existing
- Duration
- Permanent
- Marking & lighting
- Dual-red and medium intensity
Timeline
- Filed
- May 5, 2026
- Determined
- June 16, 2026
- Determination expires
- —
Who filed it
- Sponsor
- Exelon CORP
- Representative
- EAS
Names are shown as they appear in the FAA's public record. How we handle names
Location
- Coordinates
- 39.191281, -77.104714
- Degrees / minutes / seconds
- 39°11'28.6"N 77°06'17.0"W
- County
- Montgomery
- Open in a map
- Google MapsOpenStreetMap
Other filings within 5 miles
Organisation-sponsored 2026 filings whose coordinates sit near this one.
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.