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Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 442 ft MSL · USGS ground 383 ft · Δ 59 ft
Differential consistent with an elevated / rooftop pad
Structure cross-check (Overture / OSM)
Rooftop pad — the coordinate falls on a building footprint
Building height ≈ 38 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
UNVERIFIEDConversion feasibility · four readings, one line each
Obstruction screen
No data
No FAA obstacle data on file for this state. Clearance unverified.
Geometry
Requires 52 feet of expansion
Recorded pad side 48 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
Unverified
No obstruction data on file. The dimensional gap applies; clearance is unverified.
The recorded pad is 52 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
48 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.
NFPA 418 adoption status not yet assessed for this jurisdiction.
FAA facility data
FAA LID
AR62
AIX ID
aix:hp:MM4JZAJB
Lat / Lng
34.74292, -92.29367
Elevation
442 ft MSL
Pad dimensions
48 × 48 ft
Surface type
ROOF-TOP
Activation date
1988/11
Last owner update
2022/02/23
FAA OEAAA airspace determinations2
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2014-06-16
NRAARCH-DeterminedASN 2014-ASW-4856-NRA2014-08-05
Heliport · 0 ft AGL — Update Heliport Data:\r\n1. Update ARP coordinates\r\n2. Update H1 coordinates helipad length/width and helipad elevation.\r\n3. Update H2 coordinates helipad length/width and helipad elevation. \r\n4. Note that Helipad H3 is no longer planned.
NRAARCH-DeterminedASN 1999-ASW-1085-NRA2002-09-05
Other · 0 ft AGL — RELOCATE HELIPORT CLOSE EXISTING PAD AND OPEN 2 NEW ONES ON BLDG ROOF
Blueprint
The record vs. what we measured
64/100
DATA INTEGRITY
Surface elevation
The FAA record places this pad at 442 ft. USGS terrain plus the building put the actual rooftop at 421 ft — a -21 ft difference the federal record doesn’t carry.
eVTOL footprint
The 48 ft pad is 52 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation442 ft421 ft · USGS+structure
Structurenot on recordRooftop pad
Pad dimensions48 ft side (filed)48 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.
ARKANSAS CHILDREN'S HOSPITAL, LITTLE ROCK, AR (FAA AR62). AirIndex facility record aix:hp:MM4JZAJB. Verifiable at https://www.airindex.io/verify/aix:hp:MM4JZAJB.