Reference only — not for real-world navigation.
LS55
William Olefins LLC · Geismar
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
13 ft / 4 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
H1/ · 150 ft · GRASS / SODUNLITFlight Planning
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Welcome to the technical flight briefing for William Olefins LLC (LS55), located in Geismar, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 13 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
William Olefins LLC
ICAO / IATA
LS55 / —
Municipality
Geismar
Country
Region
US-LA — Louisiana
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
13 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway H1 /
UNLIT
Runway Length: 150 ft / 46 m
Runway Width: 150 ft / 46 m
Surface Type: GRASS / SOD
Heading: —° / —°
Runway Width: 150 ft / 46 m
Surface Type: GRASS / SOD
Heading: —° / —°
RWY H1
No ILS / Visual Only
RWY
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026