Type Record · As of May 3, 2026
SCHWEIZER SGU-1-20
Glider · NONE NONE
Registered
3
Year Range
1946–1956
NTSB Events
0
Airworthiness Directives
0
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered SCHWEIZER SGU-1-20 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- IA 33.3% 1
- PA 33.3% 1
- OH 33.3% 1
By Decade of Manufacture
- 1940s 33.3% 1
- 1950s 33.3% 1
- Unknown 33.3% 1
02 / NTSB Records
Events involving SCHWEIZER SGU-1-20 aircraft
No NTSB-recorded events match SCHWEIZER SGU-1-20 in the indexed corpus.
03 / Airworthiness Directives
FAA directives applicable to SCHWEIZER SGU-1-20
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Type Certificate Data Sheets
FAA TCDS for SCHWEIZER SGU-1-20
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- G-17 Current Rev 2 · 11/29/2010
K & L Soaring LLC
Models: SGU-1-19, SGU-1-19A
06 / Supplemental Type Certificates
Modifications approved for SCHWEIZER SGU-1-20
12 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.
-
09/09/2022
STC SA4503NM (PAGE 1)
Install Ceconite covering material.
Ceconite Division of Poly-Fiber Inc
-
10/14/2016
STC SA01734SE (PG 3)
Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.
Andrew D. Humphrey
-
06/10/2015
STC SA01734SE (PG 3)
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.
-
03/23/2011
STC SA01734SE (PG 3)
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.
-
02/25/2011
STC SA4503NM (Page 1)
Install Ceconite covering material.
Ceconite Division of Poly-Fiber Inc
-
06/26/2009
STC SA01734SE (PG 3)
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.
-
04/07/1994
STC SA7965SW
Application of fabric and polyurethane finishing system.
Air Tech Coatings
-
08/19/1983
STC SG10WE
Replace existing fabric on wings, fuselage, empennage, and/or control surfaces with Ceconite103 material.
Ceconite Inc
-
08/19/1980
STC SG4-1240
Installation of Eonnex cover on aircraft surfaces.
Ceconite, Inc
-
01/01/1960
STC SG7WE
Ceconite 101 covering of complete airframe.
Cooper Engineering Corporation
-
—
STC SG7WE
Ceconite 101 covering of complete airframe.
Cooper Engineering Corporation
07 / PMA replacement parts
FAA-approved replacement parts for SCHWEIZER SGU-1-20
22 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.
-
19401#https://drs.faa.gov/browse/excelExternalWindow/9B710756346DF1BA86257953005E19B9.0001##
LH/RH Wing Assembly
K&L Soaring LLC replaces 19401
PMA holder → -
19023#https://drs.faa.gov/browse/excelExternalWindow/C5A1D44724357E5986257953005E1984.0001##
Fuselage Assembly
K&L Soaring LLC replaces 19023
PMA holder → -
19500#https://drs.faa.gov/browse/excelExternalWindow/FD1F5E2394FB7E6486257953005E1A39.0001##
LH/RH Aileron Assembly
K&L Soaring LLC replaces 19500
PMA holder → -
19464#https://drs.faa.gov/browse/excelExternalWindow/58A8EC8EE66419D486257953005E1A0D.0001##
Jury Strut Assembly
K&L Soaring LLC replaces 19464
PMA holder → -
19906#https://drs.faa.gov/browse/excelExternalWindow/3BA01C9C9893AA5186257953005E1B19.0001##
Gap Cover Assembly
K&L Soaring LLC replaces 19906
PMA holder → -
19407#https://drs.faa.gov/browse/excelExternalWindow/306D6FAF5097EEB586257953005E19E2.0001##
Wing Strut Assembly
K&L Soaring LLC replaces 19407
PMA holder → -
19023#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161638575220221007131600.0001##
Fuselage Assembly
K&L Soaring LLC replaces 19023
PMA holder → -
19407#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161272999220221007131602.0001##
Wing Strut Assembly
K&L Soaring LLC replaces 19407
PMA holder → -
19500#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101755004120221007131604.0001##
LH/RH Aileron Assembly
K&L Soaring LLC replaces 19500
PMA holder → -
19401#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113924783720221007131601.0001##
LH/RH Wing Assembly
K&L Soaring LLC replaces 19401
PMA holder → -
19906#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165670534320221007131608.0001##
Gap Cover Assembly
K&L Soaring LLC replaces 19906
PMA holder → -
19464#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154306106820221007131603.0001##
Jury Strut Assembly
K&L Soaring LLC replaces 19464
PMA holder → -
19800#https://drs.faa.gov/browse/excelExternalWindow/F35866B992A70E2F86257953005E1AB2.0001##
Horizontal Tail Assembly
K&L Soaring LLC replaces 19800
PMA holder → -
19706#https://drs.faa.gov/browse/excelExternalWindow/A61E98B4A441C02B86257953005E1A86.0001##
Vertical Fin Assembly
K&L Soaring LLC replaces 19706
PMA holder → -
19703#https://drs.faa.gov/browse/excelExternalWindow/BDEF694910088B0186257953005E1A5A.0001##
Rudder Assembly
K&L Soaring LLC replaces 19703
PMA holder → -
19703#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151604995020221007131604.0001##
Rudder Assembly
K&L Soaring LLC replaces 19703
PMA holder → -
19706#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100756634420221007131605.0001##
Vertical Fin Assembly
K&L Soaring LLC replaces 19706
PMA holder → -
19805#https://drs.faa.gov/browse/excelExternalWindow/CEA99F8119F0D25586257953005E1AE2.0001##
Stabilizer Strut Assembly
K&L Soaring LLC replaces 19805
PMA holder → -
19917#https://drs.faa.gov/browse/excelExternalWindow/76874EEA112C3FEA86257953005E1B40.0001##
Fin Fairing
K&L Soaring LLC replaces 19917
PMA holder → -
19917#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113569114720221007131609.0001##
Fin Fairing
K&L Soaring LLC replaces 19917
PMA holder → -
19805#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154797551520221007131607.0001##
Stabilizer Strut Assembly
K&L Soaring LLC replaces 19805
PMA holder → -
19800#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176029649720221007131606.0001##
Horizontal Tail Assembly
K&L Soaring LLC replaces 19800
PMA holder →
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for SCHWEIZER SGU-1-20
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 3 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 →