Type Record · As of May 3, 2026
WACO 9
Fixed Wing Single Engine
Registered
6
Year Range
1926–1940
NTSB Events
3
Airworthiness Directives
16
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered WACO 9 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- OH 33.3% 2
- VA 16.7% 1
- OR 16.7% 1
- PA 16.7% 1
- CA 16.7% 1
By Decade of Manufacture
- 1920s 16.7% 1
- 1940s 16.7% 1
- Unknown 66.7% 4
02 / NTSB Records
Events involving WACO 9 aircraft
3 event(s) on file. Showing the most recent 3.
-
Feb 3, 1992
N1066BOONE, Iowa Fatal
NTSB Docket → -
Jul 10, 1989
N1066PERRY, Iowa Minor
NTSB Docket → -
Jun 22, 1985
N997HEBER CITY, Utah Fatal
NTSB Docket →
03 / Airworthiness Directives
FAA directives applicable to WACO 9
16 directive(s) on file. Showing the most recent 16.
-
Jan 3, 2024
Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain WACO Classic Aircraft Corporation Model 2T-1A-2 airplanes. This AD was prompted by reports of multiple types of cracks at the leading edge former ribs and trailing edge former ribs in the upper wing center section. This AD requires installing maneuver…
-
Oct 27, 2023
Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain WACO Classic Aircraft Corporation Model 2T-1A-2 airplanes. This proposed AD was prompted by reports of multiple types of cracks at the leading edge former ribs and trailing edge former ribs in the upper wing center section. This proposed AD would…
-
Feb 14, 2022
Airworthiness Directives; Various Airplanes
The FAA is adopting a new airworthiness directive (AD) for various airplanes modified with certain configurations of Garmin G3X Touch Electronic Flight Instrument System installed per Supplemental Type Certificate (STC) No. SA01899WI or Garmin GI 275 Multi-Function Display (MFD) installed per STC No. SA02658SE. This A…
-
Aug 17, 2020
Airworthiness Directives; Aspen Avionics, Inc.
The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. As pu…
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Jul 31, 2020
Airworthiness Directives; Aspen Avionics, Inc.
The FAA is adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. This AD imposes operating restrictions on these display sy…
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Jan 23, 2019
Airworthiness Directives; Aspen Avionics, Inc., Evolution Flight Display Units
We are adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc. (Aspen), Evolution Flight Display (EFD) EFD1000 Primary Flight Display (PFD), EFD1000 Multi-Function Display (MFD), EFD1000 Emergency Backup Display (EBD), and EFD500 MFD units installed on various aircraft. This AD requires disabling…
-
Apr 10, 2018
Airworthiness Directives; Textron Aviation Inc. Airplanes
We are adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. Models 510, 680, and 680A airplanes equipped with certain part number brake assemblies. This AD was prompted by a report that brake pad wear indicator pins were set incorrectly, which could lead to brake pad wear beyond the acceptable…
-
Dec 11, 2017
Airworthiness Directives; Textron Aviation Inc. Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Textron Aviation Inc. Models 510, 680, and 680A airplanes equipped with certain part number brake assemblies. This proposed AD was prompted by a report that brake pad wear indicator pins were set incorrectly, which could lead to brake pad wear beyond t…
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Jun 5, 2012
Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes
We are adopting a new airworthiness directive (AD) for certain WACO Classic Aircraft Corporation Models 2T-1A, 2T-1A-1, and 2T-1A-2 airplanes. This AD requires inspection of the front and rear horizontal stabilizer spar assemblies with replacement of parts as necessary. This AD was prompted by cracking of the horizont…
-
Jul 13, 2007
Airworthiness Directives; Trimble or FreeFlight Systems 2101 I/O Approach Plus Global Positioning System (GPS) Navigation Systems
This document proposes adopting a new airworthiness directive (AD) for the Trimble or FreeFlight Systems 2101 I/O Approach Plus global positioning system (GPS) navigation system (2101 I/O Approach Plus system). The AD would require a software upgrade for this system. This proposal is prompted by an incident that led t…
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Sep 10, 2001
Airworthiness Directives; Airbus Model A340-211 Series Airplanes Modified by Supplemental Type Certificate ST09092AC-D
This amendment adopts a new airworthiness directive (AD), applicable to all Airbus Model A340-211 series airplanes modified by supplemental type certificate ST09092AC-D, that requires modifying the passenger entertainment system (PES) and revising the Flight Crew Operating Manual. This action is necessary to ensure th…
-
Mar 2, 2001
Airworthiness Directives; Airbus Model A340-211 Series Airplanes Modified by Supplemental Type Certificate ST09092AC-D
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Airbus Model A340-211 series airplanes modified by supplemental type certificate ST09092AC-D. This proposal would require modifying the passenger entertainment system (PES) and revising the Flight Crew Operating Manual.…
-
Mar 2, 2001
Airworthiness Directives; Boeing Model 747-400 Series Airplanes Modified by Supplemental Type Certificate SA8843SW
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Boeing Model 747-400 series airplanes modified by supplemental type certificate SA8843SW. This proposal would require modifying the passenger entertainment system (PES) installed by that STC and revising the Airplane Fl…
-
Mar 2, 2001
Airworthiness Directives; Boeing Model 747SP Series Airplanes Modified by Supplemental Type Certificate ST09097AC-D
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Boeing Model 747SP series airplanes modified by supplemental type certificate ST09097AC-D. This proposal would require modifying the passenger entertainment system (PES) installed by that STC and revising the Airplane F…
-
Mar 2, 2001
Airworthiness Directives; Boeing Model 767-200 Series Airplanes Modified by Supplemental Type Certificate ST09022AC-D
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Boeing Model 767-200 series airplanes modified by supplemental type certificate ST09022AC-D. This proposal would require modifying the passenger entertainment system (PES) and revising the Airplane Operations Manual. Th…
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Mar 2, 2001
Airworthiness Directives; Boeing Model 737-700IGW Series Airplanes Modified by Supplemental Type Certificate ST09100AC-D, ST09104AC-D, ST09105AC-D, or ST09106AC-D
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Boeing Model 737-700IGW series airplanes modified by supplemental type certificate ST09100AC-D, ST09104AC-D, ST09105AC-D, or ST09106AC-D. This proposal would require modifying the passenger entertainment system (PES) in…
04 / Type Certificate Data Sheets
FAA TCDS for WACO 9
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- ATC-11 Current Rev 0 ·
The Waco Aircraft Company
Models: 9
06 / Supplemental Type Certificates
Modifications approved for WACO 9
9 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
-
09/01/2022
STC SA01967WI (3 OF3)
Use of GAMI G100UL High Octane Unleaded Avgas
General Aviation Modifications Inc.
-
06/04/2020
STC SA02268CH (PAGE 5)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
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12/20/2017
STC SA02268CH (PAGE 5)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
-
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
-
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
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08/28/2011
STC SA02268CH (PAGE 5)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
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06/26/2009
STC SA01734SE (PG 4)
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.
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07/24/2008
STC SA02033AT (PAGE 5)
Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)
M-20 Oil Separators LLC
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03/29/2006
STC SA02268CH (PAGE 5)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for WACO 9
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 6 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 →