Type Record · As of May 3, 2026
WACO YMF
Fixed Wing Single Engine · JACOBS L4 /R755-7
Registered
14
Year Range
1934–1989
NTSB Events
6
Airworthiness Directives
4
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered WACO YMF aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- OH 21.4% 3
- TX 14.3% 2
- CA 14.3% 2
- OK 7.1% 1
- CO 7.1% 1
- MN 7.1% 1
- MO 7.1% 1
- MA 7.1% 1
- MS 7.1% 1
- NY 7.1% 1
By Decade of Manufacture
- 1930s 14.3% 2
- 1940s 7.1% 1
- 1950s 7.1% 1
- 1980s 42.9% 6
- Unknown 28.6% 4
02 / NTSB Records
Events involving WACO YMF aircraft
6 event(s) on file. Showing the most recent 6.
-
Dec 25, 2015
N99YFullerton, California
NTSB Docket → -
Jul 28, 1997
N14128LAKE BUENA VIST, Florida
NTSB Docket → -
Jan 1, 1997
N14128KISSIMMEE, Florida
NTSB Docket → -
Feb 3, 1989
N99YKEY WEST, Florida Minor
NTSB Docket → -
Jul 13, 1988
N99YKEY WEST, Florida
NTSB Docket → -
Oct 15, 1986
N99YKEY WEST, Florida
NTSB Docket →
02c / Academic Research
Scholarly work mentioning WACO YMF
Papers and reports across NASA, NTSB, FAA CAMI, AOPA ASI, Embry-Riddle, arXiv, and the broader academic graph that mention this airframe. Title or keyword match — drill into each for full abstract + author list + PDF link.
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to WACO YMF
4 directive(s) on file. Showing the most recent 4.
-
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…
-
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…
-
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…
04 / Type Certificate Data Sheets
FAA TCDS for WACO YMF
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- ATC 542 Historical Rev 2 · 10/26/2010
The Waco Aircraft Company
Models: YMF
06 / Supplemental Type Certificates
Modifications approved for WACO YMF
178 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
-
04/01/2025
STC SA04046CH PAGE 2
Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)
Acron Aviation Inc.
-
04/01/2025
STC SA02738CH (PAGE 3)
Installation of L-3 Communications Avionics Systems
Acron Aviation Inc.
-
09/26/2024
STC SA02594SE
SkyView HDX Instrumentation and Autopilot System manufactured
Dynon Avionics
-
08/21/2024
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
06/13/2024
STC SA02511SE (3 OF 3)
Installation of replacement fuel quantity indicator sending unit(s)
CiES Inc.
-
05/17/2024
STC SA4503NM (PAGE 2)
Remove original cloth covering and install Ceconite covering
Ceconite Division of Poly-Fiber Inc.
-
12/12/2023
STC SA02571SE (PAGE 2)
Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).
Garmin International Inc.
-
10/10/2023
STC SA01899WI
Installation of Garmin G3X Touch Electronic Flight Instrument System
Garmin International Inc.
-
08/10/2023
STC SA02019WI
Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio.
Peregrine
-
12/12/2022
STC SA02738CH (PAGE 3)
Installation of L-3 Communications Avionics Systems
L3Harris Aviation Products Inc.
-
12/12/2022
STC SA04046CH PAGE 2
Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)
L3Harris Aviation Products Inc.
-
10/12/2022
STC SA02594SE
SkyView HDX Instrumentation and Autopilot System manufactured
Dynon Avionics
-
07/27/2022
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
05/19/2022
STC SA04776NY (1 OF 2)
The HIPEC Covering and Finishing System must be performed and maintained
HIPEC Aircraft Coatings Inc.
-
02/02/2022
STC SA02571SE (PAGE 2)
Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).
Garmin International Inc
-
01/05/2022
STC SA02594SE
SkyView HDX Instrumentation and Autopilot System manufactured
Dynon Avionics
-
12/29/2021
STC SA01899WI
Installation of Garmin G3X Touch Electronic Flight Instrument System
Garmin International Inc
-
12/20/2021
STC SA02594SE
SkyView HDX Instrumentation and Autopilot System manufactured
Dynon Avionics
-
09/28/2021
STC SA01818WI
Installation of Garmin G5 Electronic Flight Instrument
Garmin International Inc.
-
09/01/2021
STC SA11174SC PAGE 2
Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems
Honeywell International Inc (Bendix King)
-
07/15/2021
STC SA10822SC
Installation of EFD1000 Primary Flight Display
Aspen Avionics Inc.
-
07/15/2021
STC SA10822SC
Installation of EFD1000 Primary Flight Display
Aspen Avionics Inc.
-
07/09/2021
STC SA02571SE (PAGE 2)
Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).
Garmin International Inc
-
06/09/2021
STC SA00401BO (PAGE 2)
Installation of a SkyTrax100B UAT receiver
Avidyne Corporation
-
03/12/2021
STC SE02712SE
Installation of the Oil Scavenging Pump System for Jacobs L-4 and R-755
Henry F. Rogers
-
11/09/2020
STC SA02594SE
SkyView HDX Instrumentation and Autopilot System manufactured
Dynon Avionics
-
10/29/2020
STC SA02511SE (3 OF 3)
Installation of replacement fuel quantity indicator sending unit(s)
CiES Inc.
-
10/19/2020
STC SA001410BO
Entered in Error - See SA00410BO
uAvionix Corporation
-
08/31/2020
STC SA00410BO
Installation of an AV-30-C Multi-Mode Indicator
uAvionix Corporation
-
08/31/2020
STC SA001410BO
Installation of an AV-30-C Multi-Mode Indicator
uAvionix Corporation
+ 148 more STCs on file
07 / PMA replacement parts
FAA-approved replacement parts for WACO YMF
12 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.
-
RG-25XC#https://drs.faa.gov/browse/excelExternalWindow/B391D28D9D6D8DFE862581DE006902F1.0001##
Battery
Concorde Battery Corp replaces RG-25XC
PMA holder → -
A4138#https://drs.faa.gov/browse/excelExternalWindow/4DBEA031CEDB7BD686257FC5006D9EA5.0001##
CUP
Timken Corporation replaces 214-82700
PMA holder → -
A4050#https://drs.faa.gov/browse/excelExternalWindow/0FABDD9E627EB6C386257FC5006D9EA1.0001##
CONE
Timken Corporation replaces 214-82800
PMA holder → -
A4138#https://drs.faa.gov/browse/excelExternalWindow/F8E3E1D12EB072FF86257D2A005745E3.0001##
CUP
Timken Corporation replaces 214-82700
PMA holder → -
A4050#https://drs.faa.gov/browse/excelExternalWindow/1582637AF367E4CC86257D2A005745E1.0001##
CONE
Timken Corporation replaces 214-82800
PMA holder → -
ST-945-MDL-0001#https://drs.faa.gov/browse/excelExternalWindow/D1D11D715AE043D386257B4A006C8981.0001##
System 55X Two Axis Automatic Flight Control Systems
S-TEC Corporation replaces Modification Part
PMA holder → -
ST-897-20/30#https://drs.faa.gov/browse/excelExternalWindow/09BF91CBF8E588A4862576DA00592749.0001##
System 20/30 Single and Two Axis Automatic Flight Guidance Systems
S-TEC Corporation replaces Modification Part
PMA holder → -
MDL103216-000#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161206977320240221143437.0001##
SkyView HDX Instrumentation
Dynon Avionics, Inc. replaces Modification Part
PMA holder → -
Kit SF-D#https://drs.faa.gov/browse/excelExternalWindow/49CEB2CA13B0165A86257117004F5403.0001##
System II Finish Materials
Aviation Products Systems Inc replaces Modification Part
PMA holder → -
SF-102#https://drs.faa.gov/browse/excelExternalWindow/5323988C62D91B7886257117004F4C58.0001##
Fabric
Aviation Products Systems Inc replaces Modification Part
PMA holder → -
Kit SF-C#https://drs.faa.gov/browse/excelExternalWindow/8F321AB2BD9D881186257117004F5038.0001##
Dope Finish Materials
Aviation Products Systems Inc replaces Modification Part
PMA holder → -
Kit SF-P#https://drs.faa.gov/browse/excelExternalWindow/2282E5FBC3CEBBE886257117004F57CF.0001##
Standard System Finish Materials
Aviation Products Systems Inc replaces Modification Part
PMA holder →
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for WACO YMF
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 14 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.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N14128 | TX | 1934 | ● | Look up ↗ |
| N14132 | OH | 1935 | · | Look up ↗ |
| N14134 | OK | — | · | Look up ↗ |
| N14300 | OH | — | · | Look up ↗ |
| N14607 | OH | 1944 | · | Look up ↗ |
| N15241 | CA | 1951 | · | Look up ↗ |
| N1932J | CO | — | · | Look up ↗ |
| N23JL | MN | — | · | Look up ↗ |
| N33KD | MO | 1986 | · | Look up ↗ |
| N503HD | TX | 1989 | · | Look up ↗ |
| N6377M | MA | 1988 | · | Look up ↗ |
| N72NS | MS | 1988 | · | Look up ↗ |
| N91JM | NY | 1986 | · | Look up ↗ |
| N99Y | CA | 1986 | ● | Look up ↗ |
Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)
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 →