Type Record · As of May 3, 2026
INTERSTATE S-1A-65F
Fixed Wing Single Engine · CONT MOTOR A&C65 SERIES
Registered
5
Year Range
1941–1942
NTSB Events
0
Airworthiness Directives
0
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered INTERSTATE S-1A-65F aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- IN 20.0% 1
- ND 20.0% 1
- MO 20.0% 1
- DE 20.0% 1
- CA 20.0% 1
By Decade of Manufacture
- 1940s 80.0% 4
- Unknown 20.0% 1
02 / NTSB Records
Events involving INTERSTATE S-1A-65F aircraft
No NTSB-recorded events match INTERSTATE S-1A-65F in the indexed corpus.
03 / Airworthiness Directives
FAA directives applicable to INTERSTATE S-1A-65F
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Type Certificate Data Sheets
FAA TCDS for INTERSTATE S-1A-65F
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- A-737 Current Rev 7 · 12/09/1970
Arctic Aircraft Company Inc.
Models: S-1A-90F, S-1A, S-1A-85F, S-1A-65F
06 / Supplemental Type Certificates
Modifications approved for INTERSTATE S-1A-65F
15 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
-
12/19/2012
STC SA01026SE (PAGE 2)
Improved fuel gascolator assembly.
Steve's Aircraft
-
10/19/2011
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
09/14/2011
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
02/01/2010
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
09/18/2009
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
06/14/2009
STC SA01026SE (PAGE 2)
Installation of improved fuel gascolator.
Steve's Aircraft
-
05/15/2009
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
04/17/2009
STC SA01988SE (PAGE 1)
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P.
Electronics International Inc.
-
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
-
05/23/2008
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
10/31/2007
STC SA1355WE
Installation of fiberglass cowling.
STOL Aviation LLC c/o Tom Csatari
-
05/14/2007
STC SA00478CH (PAGE 2)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
06/08/2006
STC SA01026SE (2 OF 2)
Installation of improved fuel gascolator.
Steve's Aircraft
-
03/29/2006
STC SA02268CH (PAGE 3)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
-
03/05/2004
STC SA01944CH (1 OF 2)
Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index, per ASTM Specification D-439 or D-4818 of any volatility class, A through E, or 82UL AVGAS per A…
Experimental Aircraft Association Inc.
07 / PMA replacement parts
FAA-approved replacement parts for INTERSTATE S-1A-65F
1 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.
-
#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID491851478202106221425110.0001##
AeroLEDs LLC
PMA holder →
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for INTERSTATE S-1A-65F
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 5 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 →