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MA74 Larson's Seaplane Base
Tyngsboro, Massachusetts, USA

GOING TO TYNGSBORO?

FAA INFORMATION EFFECTIVE 27 NOVEMBER 2025

Location

FAA Identifier: MA74
Lat/Long: 42-41-29.3230N 071-25-05.2300W
42-41.488717N 071-25.087167W
42.6914786,-71.4181194
(estimated)
Elevation: 90 ft. / 27 m (estimated)
Variation: 16W (1985)
From city: 1 mile NE of TYNGSBORO, MA
Time zone: UTC -5 (UTC -4 during Daylight Saving Time)
Zip code: 01879

Seaplane Base Operations

Seaplane Base use: Private use. Permission required prior to landing
Control tower: no
ARTCC: BOSTON CENTER
FSS: BRIDGEPORT FLIGHT SERVICE STATION
Attendance: DAYLIGHT HOURS
Wind indicator: no
Segmented circle: no

Seaplane Base Communications

WX AWOS-3PT at ASH (7 nm NW): 125.1 (603-578-0473)
WX ASOS at LWM (13 nm E): PHONE 978-687-8017
WX ASOS at BED (14 nm SE): 124.6 (781-372-5512)
WX ASOS at MHT (15 nm N): 119.55 (603-626-6902)
WX ASOS at FIT (17 nm SW): 135.175 (978-343-9121)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
BOSr333/27.6BOSTON VOR/DME112.7016W
GDMr087/29.6GARDNER VOR/DME116.9514W
CONr183/32.4CONCORD VOR/DME112.9015W

 
NDB name  Hdg/Dist  Freq  Var  ID
FITZY170/11.520915WMJ -- .---

Seaplane Base Services

Runway Information

Runway 13W/31W

Dimensions: 2500 x 400 ft. / 762 x 122 m
Surface: water
RUNWAY 13W  RUNWAY 31W
Traffic pattern: leftleft

Seaplane Base Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: KAREN M. TAFT
12 LARSON AVE
TYNGSBORO, MA 01879
Phone 978-649-7172
Manager: KAREN M. TAFT
12 LARSON AVE
TYNGSBORO, MA 01879
Phone 978-649-7172

Additional Remarks

- FOR CD CTC BOSTON APCH AT 603-594-5551.

Instrument Procedures

There are no published instrument procedures at MA74.

Some nearby airports with instrument procedures:

KASH - Boire Field Airport (7 nm NW)
KLWM - Lawrence Municipal Airport (13 nm E)
KBED - Laurence G Hanscom Field Airport (14 nm SE)
KMHT - Manchester Boston Regional Airport (14 nm N)
6B6 - Minute Man Air Field (15 nm S)
KFIT - Fitchburg Municipal Airport (17 nm SW)
  
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Area around MA74 (Larson's Seaplane Base)
 
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From to MA74

Sunrise and sunset
Times for 19-Dec-2025
 Local
(UTC-5)		 Zulu
(UTC)
Morning civil twilight06:4011:40
Sunrise07:1312:13
Sunset16:1321:13
Evening civil twilight16:4521:45

Current date and time
Zulu (UTC)  19-Dec-2025 05:42:08
Local (UTC-5)  19-Dec-2025 00:42:08
 
METAR
KASH 
6nm NW 		190456Z AUTO 00000KT 10SM OVC007 02/01 A3004 RMK AO2 SLP175 T00170006 400831072
KLWM 
13nm E 		190454Z AUTO 00000KT 10SM OVC013 04/02 A3008 RMK AO2 SLP185 T00390022 400891044
KBED 
14nm S 		190451Z AUTO 00000KT 10SM OVC013 04/02 A3004 RMK AO2 SLP187 T00390022 400941072 $
KMHT 
15nm N 		190453Z 10003KT 10SM OVC008 04/02 A3003 RMK AO2 PRESFR SLP186 T00390017 400671067
KFIT 
17nm SW 		190452Z AUTO 00000KT 10SM OVC007 02/00 A3004 RMK AO2 SLP176 T00170000 400781061
TAF
KBED 
14nm S 		181722Z 1818/1918 18007KT P6SM FEW250 FM190400 17006KT P6SM OVC012 WS020/19040KT FM190800 17008KT 3SM BR OVC007 WS020/19040KT PROB30 1909/1912 1SM -RA OVC002 FM191200 18014G30KT 3SM -RA OVC008 WS020/18045KT FM191700 18021G45KT 2SM -RA OVC008
KMHT 
15nm N 		190311Z 1903/1924 13003KT P6SM OVC012 FM190500 14005KT 6SM BR OVC009 WS019/18035KT FM190900 16008G15KT 2SM -RA BR OVC006 WS020/20046KT FM191400 17016G35KT 3/4SM RA BR OVC003 WS020/18050KT
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