ELIP · Emergency-Landing Coverage
Safety-Case Report
JFK – Manhattan
JFK AirportManhattan Heliport · 24 km · 2000 ft max · PROPOSED
Route Coverage
68.3%
Generated 2026-08-24
1  Coverage Verdict12.84 nm route
Route within reach of a viable landing site68.3%
Landing desert (no site in reach)4.08 nm
Longest continuous desert2.86 nm
Viable diversion nodes serving the route9 (1 unregistered candidate)
Urgency-band breakdown (FAA emergency taxonomy)
Land Immediately0.49 nm · 3.8%
Land ASAP0.97 nm · 7.6%
Land As Practical7.3 nm · 56.9%
Landing Desert4.08 nm · 31.8%
2  Inventory Findingcorrected landing record
The FAA-registered inventory alone yields 53.1% coverage on this route. 1 unregistered hospital helipad — including Woodhull Medical And Mental Health Center (1.7 nm off-route) sits within emergency reach, reclaiming 2 nm the registry alone records as landing desert. Corrected coverage: 68.3%.
Unregistered pads are HIFLD-listed hospital helipads with no FAA registration within the match radius — real but UNVERIFIED candidates (no FAA record or RiskIndex grade). They are counted toward coverage under emergency tolerance and flagged throughout; each is a candidate for Ground Truth physical verification before being relied on operationally.
3  Landing Deserts2 gaps
Stretches where no viable landing site is within reach. The FAA safety case for emergency-landing provision must address each.
From 0 nm → 2.856 nm along route2.856 nm · nearest site 3.013 nm
From 6.74 nm → 7.959 nm along route1.219 nm · nearest site 3.122 nm
4  Diversion Nodes3 viable sites
SiteSource · Risk tier · Weather · Off-route
Downtown Manhattan/Wall StFAA-registeredMODERATEwx ELEVATED0.002 nm
Woodhull Medical And Mental Health Centerunregisteredwx —1.711 nm
Nypd Air Operations (Floyd Bennett Fld)FAA-registeredELEVATEDwx ELEVATED1.954 nm
5  Methodology & Provenance
Coverage methodologyelip-coverage-1.2
Reach modelfixed distance bands
Urgency bandsLand Immediately ≤0.5nm · Land ASAP ≤1.5nm · Land As Practical ≤3nm
Viability cutexcludes RiskIndex CRITICAL + ELIP not-suitable
Weather hazard (per node)climatological · IEM ASOS · nearest station · weather-hazard-v1
Landing inventoryFAA NASR 5010 + reconciled HIFLD pads
Sampled every0.25 nm
Live coverage recordairindex.io/elip/coverage/cor_jfk_manhattan
Live / unsealed analysis. This report renders the current canonical ELIP coverage from live AirIndex data and is verifiable against the coverage record above and the published methodology. It is not a sealed, provenance-anchored artifact. Coverage is geometry over a reconciled inventory; it does not certify that any individual site is operationally usable for a given aircraft — that requires the site’s RiskIndex assessment and, for the full physical state, a Ground Truth field capture.
AirIndex ELIP · elip-coverage-1.2 · Vertical Data Group · Generated 2026-08-24
Sources: FAA NASR 5010 · CMS / HIFLD hospital registry · FAA OE/AAA · IEM ASOS climatology · AirIndex coordinate-correction + data-integrity layer