GREAT LAKES 2T-1

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered GREAT LAKES 2T-1 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

02 /  NTSB Records

Events involving GREAT LAKES 2T-1 aircraft

1 event(s) on file. Showing the most recent 1.

• Apr 9, 1966

  N872K

  BAKER, California Serious

  NTSB Docket →

03 /  Airworthiness Directives

FAA directives applicable to GREAT LAKES 2T-1

2 directive(s) on file. Showing the most recent 2.

• Nov 19, 2001

  Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) Propellers

  This amendment supersedes priority letter AD 90-02-23, that is applicable to certain Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) propellers. That priority letter currently requires repetitive visual inspections of propeller hubs for cracks using a 10X glass and, if necessary, removal of cracked hubs and replacement wit…

  Atlas AD → Federal Register ↗

• Jan 27, 1999

  Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )2Y( )- ( ) Propellers

  This document proposes to supersede priority letter airworthiness directive (AD) 90-02-23 by adopting a new AD applicable to Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) propellers. Priority letter AD 90-02-23 currently requires repetitive visual inspections of propeller hubs for cracks using a 10X glass, and, if necess…

  Atlas AD → Federal Register ↗

04 /  Type Certificate Data Sheets

FAA TCDS for GREAT LAKES 2T-1

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 2 matches in the FAA catalog.

• ATC 167 Current Rev 0 ·

  Great Lakes Aircraft Company

  Models: 2T-1

  Atlas TCDS → DRS ↗
• TC 2-339 Current Rev 0 ·

  Great Lakes Aircraft Company

  Models: 2T-1 Menasco Special

  Atlas TCDS → DRS ↗

06 /  Supplemental Type Certificates

Modifications approved for GREAT LAKES 2T-1

20 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

• 05/17/2024

  STC SA4503NM (PAGE 1)

  Remove original cloth covering and install Ceconite covering

  Ceconite Division of Poly-Fiber Inc.

  Atlas STC → DRS ↗

• 09/09/2022

  STC SA4503NM (PAGE 1)

  Install Ceconite covering material.

  Ceconite Division of Poly-Fiber Inc

  Atlas STC → DRS ↗

• 05/18/2022

  STC SA04776NY (2 OF2)

  The HIPEC Covering and Finishing System must be performed and maintained

  HIPEC Aircraft Coatings Inc.

  Atlas STC → DRS ↗

• 12/20/2017

  STC SA01406NY

  Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and\nrotary wing

  Airwolf Filter Corporation

  Atlas STC → DRS ↗

• 10/31/2012

  STC SA01406NY

  Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and\nrotary wing

  Airwolf Filter Corporation

  Atlas STC → DRS ↗

• 02/25/2011

  STC SA4503NM (Page 1)

  Install Ceconite covering material.

  Ceconite Division of Poly-Fiber Inc

  Atlas STC → DRS ↗

• 06/26/2009

  STC SA01734SE (PG 2)

  Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.

  Stewart Thomas D. and Stewart Dan R.

  Atlas STC → DRS ↗

• 04/16/2009

  STC SA01988SE (PAGE 4)

  Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P.

  Electronics International Inc.

  Atlas STC → DRS ↗

• 07/25/2008

  STC SA02033AT (PAGE 1)

  Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line.

  M-20 Oil Separators LLC

  Atlas STC → DRS ↗

• 03/29/2006

  STC SA02268CH (PAGE 3)

  Installation of Airwolf Filter Corp. Air Oil Separator

  Airwolf Filter Corporation

  Atlas STC → DRS ↗

• 07/08/2005

  STC SA00680SE (5 OF 6

  Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.

  Electronics International

  Atlas STC → DRS ↗

• 03/09/1999

  STC SA00680SE (5 OF 6

  Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.

  Electronics International

  Atlas STC → DRS ↗

• 01/01/1996

  STC SA1115WE

  Ceconite 101 covering of complete airframe.

  Cooper Engineering Corporation

  Atlas STC → DRS ↗

• 03/09/1993

  STC SA1626NM Page 1

  Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series)

  Electronics International

  Atlas STC → DRS ↗

• 06/06/1990

  STC SA2350NM Page 1

  Installation of Electronics International Inc digital carburetor/outside air temperature gauges

  Electronics International

  Atlas STC → DRS ↗

• 10/13/1989

  STC SA4302NM (PAGE 2)

  Installation of Electronics Int'l digital automatic engine analyzer.

  Electronics International

  Atlas STC → DRS ↗

• 04/25/1988

  STC SA3862NM Page 1

  Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.

  Electronics International

  Atlas STC → DRS ↗

• 05/26/1987

  STC SA2350NM (PAGE 1)

  Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories.

  Electronics International

  Atlas STC → DRS ↗

• 02/16/1984

  STC SA2190NM Page 1

  Installation of electronics International Digital Volt/Amp Gauges and Accessories.

  Electronics International

  Atlas STC → DRS ↗

• —

  STC SA1115WE

  Ceconite 101 covering of complete airframe.

  Cooper Engineering Corporation

  Atlas STC → DRS ↗

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for GREAT LAKES 2T-1

05 /  Aircraft of this type

All 7 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

05 /  Sources & Methodology

Every count traces back to a primary US-government source

• FAA Aircraft Registry →

  Refreshed Apr 27, 2026

  Available

• NTSB CAROL →

  Refreshed Apr 27, 2026

  Available

• Federal Register (FAA Airworthiness Directives) →

  Refreshed Apr 27, 2026

  Available

We render counts and lists as the agency publishes them. Read the methodology →