AirIndex Research · FAA LID AZ41

ABACUS TOWER

PHOENIX, AZ — Phoenix metro. Operational · Private use.

OperationalPrivate usePrivate
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For hospital and EMS teams

No hospital is linked to this landing site in our records. If it serves a hospital, tell us.
Is the FAA record right?
FAA status: Open. Last FAA inspection: none on record (common for private-use pads, which the FAA does not routinely inspect). Last update from the owner: 2008/11/25. Our check of the record: Self-reported (details below).
What has the FAA said about its airspace?
No FAA airspace determination is linked to this site in the records we hold.
What is being built nearby?
1 FAA obstruction filing within 1 nm in the last 12 months, the tallest 38 ft above ground. Builders file these before putting up cranes and structures that could affect flight paths.
  • Pole Lighting, 38 ft, 0.67 nm away, filed 2026-08-27 (2026-AWP-15751-OE)
Where else can aircraft land nearby?
Nearest airport weather station
PHX
Keeping the FAA record right
  1. See your official record in the FAA's Airport Data and Information Portal (ADIP).
  2. To correct it, the facility manager signs in to ADIP and uses Airport Master Record, Update Facility Data (Airport/Heliport). The paper private-use form 5010-2 was retired in July 2024.
  3. Building, changing, reopening or closing a landing site needs notice to the FAA on Form 7480-1 (14 CFR Part 157).

AirIndex compiles public FAA, federal and hospital records and checks them against each other. It is not a source for navigation or flight planning; use official FAA sources and your operator's procedures. See something wrong? Report a correction (how corrections work).

Data integrity

54/100
Self-reportedData Integrity Index
Independent inspection
Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 1850 ft MSL · USGS ground 1104 ft · Δ 746 ft
Differential consistent with an elevated / rooftop pad
Structure cross-check (Overture / OSM)
Rooftop pad — the coordinate falls on a building footprint
Building height ≈ 205 ft — measured independently of the FAA record
Cross-source consensus
Corroborated — terrain and structure agree (2/2 sources)

Cross-checked against independent public data — USGS 3DEP terrain, Overture/OSM building footprints, the federal hospital registry, and measured dimensions. The State of the U.S. Heliport Record →

eVTOL readiness

INFEASIBLE WITHOUT REMEDIATIONConversion feasibility · four readings, one line each
Obstruction screen
Severe
High obstacle within 0.5 nm conflicts with the expanded footprint and the 8:1 approach surface.
Geometry
Requires 70 feet of expansion
Recorded pad side 30 ft against a 100 ft eVTOL FATO.
Structural FATO
Unverified
The full 100 × 100 ft FATO must be load-bearing. The FAA does not record structural capacity, so no record can confirm it.
Overall
Infeasible without remediation
A high obstacle conflicts with the expanded footprint. Remediation or a different site.
100 ft · eVTOL FATO30 ft
The recorded pad is 70 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
30 ft
eVTOL FATO required
100 ft
FAA EB-105 vertiport pattern — 2× a ~50 ft eVTOL controlling dimension, plus a 125 ft safety-area side.
Load-bearing FATO
100 × 100 ft must be structural
No heliport precedent — typically the binding gate for rooftop and hospital pads.

Measured against FAA pad geometry and federal FATO sizing (EB-105). The obstruction screen is the only reading the engine verdict rests on; geometry and structural capacity are stated separately and never folded into it. A dimensional pre-screen — site-level validation required, and independent of the underwriting risk score.

FAA compliance

Q1 · FAA registrationPASS
Active FAA NASR 5010 record.
Q2 · Airspace determinationUNKNOWN
FAA OE/AAA airspace determination data integration pending.
Q3 · State enforcementMODERATE
State has partial enforcement framework.
Q4 · NFPA 418PARTIAL
IBC references NFPA 418 for rooftop facilities. Standalone fire code reference not confirmed.

FAA facility data

FAA LID
AZ41
AIX ID
aix:hp:BE87TPD3
Lat / Lng
33.48338, -112.07015
Elevation
1850 ft MSL
Pad dimensions
30 × 30 ft
Surface type
CONC
Activation date
1988/10
Last owner update
2008/11/25

FAA OEAAA airspace determinations0

No FAA OEAAA determinations linked to this facility.
Blueprint
The record vs. what we measured
54/100
DATA INTEGRITY
Surface elevation
GROUND 1104ftROOFTOP 1308ftbldg ~205ftFAA FILED 1850ft

The FAA record places this pad at 1850 ft. USGS terrain plus the building put the actual rooftop at 1308 ft — a -542 ft difference the federal record doesn’t carry.

eVTOL footprint
FATO 100 ft reqHTLOF 30 ft

The 30 ft pad is 70 ft short of the 100 ft an eVTOL FATO requires (measured).

SIGNALFEDERAL RECORDMEASURED
Surface elevation1850 ft1308 ft · USGS+structure
Structurenot on recordRooftop pad
Pad dimensions30 ft side (filed)30 ft side · measured
Coordinate integrityas filedterrain cross-checked
Independent inspectionowner self-reportednone on record
✓Federal record
✓Cross-checkedUSGS · Overture · dimensions
3Physically verifiedGround Truth capture
Obstructions, exact FATO geometry, surface condition, and downwash exposure require a physical Ground Truth capture — not shown above as measured. A field verification completes the record and writes the measured truth to this facility’s authority.
Request Ground Truth verification

Full risk assessment

This page is the public data-integrity record. The full RiskIndex assessment — Q1–Q5 compliance, dimensional / FATO analysis, an underwriting-grade risk score, peer benchmark, and a sealed Site Intelligence Report — is available on request.

Request the full assessment

Building autonomous systems? See the machine-verified feed

Provenance FAA NASR 5010 · pad dims APT cycle 2026/03/19 · USGS 3DEP terrain · Overture structure · eVTOL screen conversion-feasibility-1.1 · AIX-ID aix:hp:BE87TPD3 · Methodology →
Cite this facility

ABACUS TOWER, PHOENIX, AZ (FAA AZ41). AirIndex facility record aix:hp:BE87TPD3. Verifiable at https://www.airindex.io/verify/aix:hp:BE87TPD3.

Verify this record →

AIX-IDs are free to cite and reference; the registry is the source of record. The verify link resolves this record against the audit chain.

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