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MA74

Larson's Seaplane Base

Tyngsboro, MassachusettsElevation 90 ftSeaplane base

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RUNWAYS

Runway detail & declared distances

1 runway · longest 2,500 ft

13W/31W
Dimensions
2,500 x 400 ft
Surface
Water
RWY 13W
RWY 31W

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

AIRPORT INFORMATION

Facility & services

Larson's Seaplane Base is in Tyngsboro, Massachusetts. Field elevation 90 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerKAREN M. TAFT
Manager phone978-649-7172
AttendedDaily, DALGT
CHARTS & AIRSPACE
ICAO / IATAMA74
SectionalNEW YORK
Center (ARTCC)BOSTON
Flight service (AFSS)BRIDGEPORT
RegionMassachusetts
CountryUnited States
Coordinates42.6915, -71.4181
Distance from city1 NM NE
SERVICES & LIGHTING
Control towerNon-towered
AIRPORT REMARKS

Operational remarks

›VFR WX CONDS ONLY.
›FOR CD CTC BOSTON APCH AT 603-594-5551.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗MA74 on OurAirports
FREQUENTLY ASKED
Does MA74 have a METAR?
No on-field METAR is issued for MA74. This page uses the nearest reporting station as a reference.
Does MA74 have a TAF?
No TAF is issued directly for MA74. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at MA74?
MA74 sits at 90 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for MA74?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.