Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 1422 ft MSL · USGS ground 1400 ft · Δ 22 ft
Structure cross-check (Overture / OSM)
Rooftop pad — the coordinate falls on a building footprint
Building height ≈ 101 ft — measured independently of the FAA record
Cross-source consensus
Single independent source — no corroboration available
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 →
The recorded pad is 60 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
40 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.
Obstruction clearance
Clear — no obstructions within 0.5 nm on the FAA obstacle file
Measured against FAA pad geometry and federal FATO sizing (EB-105). 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 determinationON_FILE
OE/AAA ASN 2024-AWP-5556-NRA: DET-to-Prop
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
AZ92
AIX ID
aix:hp:6HHBVQ71
Lat / Lng
33.41112, -111.68703
Elevation
1422 ft MSL
Pad dimensions
40 × 40 ft
Surface type
ROOF-TOP
Activation date
1985/11
Last owner update
2022/03/09
FAA OEAAA airspace determinations2
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2024-06-10
NRAARCH-DeterminedASN 2024-AWP-5556-NRA2024-07-05
Form 7480 · 24 ft AGL — LAP ASN # 2023-WSA-181-LAP- Update to existing heliport based on recent inspection- proponent requests removal of line 080 \Directional lights are located to the south of the helipad\ as this does not apply
NRAARCH-DeterminedASN 1999-AWP-74-NRA1999-10-07
Other · 0 ft AGL — PERMANENT HELIPORT ESTABLISHMENT. HARD COPIES FORWARDED.
Safety history (NTSB)1
Accident history
1 NTSB helicopter event within 3 nm since 2010 (1 accident); most recent 2024-07-09.
ACCIDENT2.1 nm2024-07-09
MCDONNELL DOUGLAS HELICOPTER 369 · Mesa, AZ — NTSB CAROL
NTSB helicopter accidents & incidents geocoded within 3 nm of this pad and attributed to the nearest facility — proximity, not a determination that an event occurred at this site. Source: NTSB aviation accident database.
Blueprint
The record vs. what we measured
76/100
DATA INTEGRITY
Surface elevation
The FAA record places this pad at 1422 ft. USGS terrain plus the building put the actual rooftop at 1502 ft — a +80 ft difference the federal record doesn’t carry.
eVTOL footprint
The 40 ft pad is 60 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation1422 ft1502 ft · USGS+structure
Structurenot on recordRooftop pad
Pad dimensions40 ft side (filed)40 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.
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.