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LOS Analyzer

Crane · 2026

Cambridge Isotope Crane

Tewksbury, MA · near Lawrence Muni (7.4 mi)

Determination of no hazardDetermined - No Hazard150 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

"Crane maximum operating height will be 150'AGL.\nMinimum operating height will be 25'AGL.\nConstruction will begin on 05/25/2026.\nA new penthouse is being erected in pace of an existing penthouse on top of the existing structure.\nPre-screening tool says no filing for building alteration is necessary as overall new building height will be 45' AGL."

Filing details

Case number (ASN)
2026-ANE-849-OE
Structure
Cambridge Isotope Crane
Type
Crane
Category
Crane
Height above ground
150 ft
Height above sea level
302 ft
Site elevation
152 ft
Notice of
New Construction
Duration
Temporary
Marking & lighting
Red lights and flags

Timeline

Filed
March 25, 2026
Determined
April 13, 2026
Determination expires
October 13, 2027

A determination that lapses before the structure is built has to be re-filed. The FAA does not send a reminder.

Who filed it

Sponsor
JAY Steel, LLC
Representative
JAY Steel

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

See every 2026 filing by JAY Steel, LLC →

Location

Coordinates
42.639702, -71.223411
Degrees / minutes / seconds
42°38'22.9"N 71°13'24.3"W
County
Middlesex

See every 2026 filing near Lawrence Muni →

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.