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Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 473 ft MSL · USGS ground 470 ft · Δ 3 ft
Structure cross-check (Overture / OSM)
On a building footprint — height not tagged in the source
Cross-source consensus
⚠ Sources conflict — pad is on a building, but FAA elevation reads ground level
Stale-low FAA elevation (the 6FD8 class) — never updated for the rooftop pad. Treat the recorded elevation as unreliable.
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
CONDITIONALConversion feasibility · four readings, one line each
Obstruction screen
Clear
No obstructions within 0.5 nm on the FAA obstacle file.
Geometry
Requires 35 feet of expansion
Recorded pad side 65 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
Conditional
Obstruction screen passed. Geometry and structural capacity remain open. Site validation required.
The recorded pad is 35 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
65 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.
IBC references NFPA 418 for rooftop facilities. Standalone fire code reference not confirmed.
FAA facility data
FAA LID
XS04
AIX ID
aix:hp:58R561D8
Lat / Lng
32.79701, -97.14607
Elevation
473 ft MSL
Pad dimensions
65 × 65 ft
Surface type
ASPH
Surface condition
EXCELLENT
Activation date
2018/01
Last owner update
2022/05/19
FAA OEAAA airspace determinations1
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2017-09-12
NRAARCH-DeterminedASN 2017-ASW-4852-NRA2017-10-31
Form 7480 · 34 ft AGL — Bell Helicopter is constructing a flight training facility near their campus in Fort Worth TX. The facility will replace their current training facility north of the Texas Motor Speedway in far north Fort Worth.
Safety history (NTSB)2
Accident history
2 NTSB helicopter events within 3 nm since 2010 (2 accidents); most recent 2025-08-27.
ACCIDENT0.2 nm2025-08-27
BELL HELICOPTER TEXTRON CANADA 505 · Fort Worth, TX — 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
57/100
DATA INTEGRITY
eVTOL footprint
The 65 ft pad is 35 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation473 ftnot cross-checked
Structurenot on recordOn a building
Pad dimensions65 ft side (filed)65 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.
BELL SOUTH AIRFIELD, FORT WORTH, TX (FAA XS04). AirIndex facility record aix:hp:58R561D8. Verifiable at https://www.airindex.io/verify/aix:hp:58R561D8.