# Waco ASO - Type: Aircraft model (FAA registry) - Registry code: 9601202 - Manufacturer (registry): WACO - Model: ASO - Aircraft type: Fixed wing single engine - Category: Airplane - Engines: 1 · Reciprocating - Seats: 3 - Weight class: Up to 12,499 lb - Cruise speed: 79 mph - Certification: Type certificated - Data sheet: [TCDS ATC 41](https://openairdocs.org/tcds/ATC%2041) (OpenAirDocs) - Holder: The Waco Aircraft Company - Registered aircraft: 33 - Page: https://openairdocs.org/model/waco-aso Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (33) - [N10001](https://openairdocs.org/aircraft/N10001): [Stoos Robert A](https://openairdocs.org/faa-owner/STOOS%20ROBERT%20A), [Lakeland, FL](https://openairdocs.org/faa-place/FL/Lakeland), built 1928, S/N A28 - [N11253](https://openairdocs.org/aircraft/N11253): [Patterson John Miles II](https://openairdocs.org/faa-owner/PATTERSON%20JOHN%20MILES%20II), [Frankfort, KY](https://openairdocs.org/faa-place/KY/Frankfort), built 1931, S/N 3212 - [N119Y](https://openairdocs.org/aircraft/N119Y): [Labarre John D](https://openairdocs.org/faa-owner/LABARRE%20JOHN%20D), [Cincinnati, OH](https://openairdocs.org/faa-place/OH/Cincinnati), built 1930, S/N 3220 - [N1826](https://openairdocs.org/aircraft/N1826): [Bowe Walter C Trustee](https://openairdocs.org/faa-owner/BOWE%20WALTER%20C%20TRUSTEE), [Sonoma, CA](https://openairdocs.org/faa-place/CA/Sonoma), built 1927, S/N 914 - [N268M](https://openairdocs.org/aircraft/N268M): [Morozowsky John S](https://openairdocs.org/faa-owner/MOROZOWSKY%20JOHN%20S), [Zanesville, OH](https://openairdocs.org/faa-place/OH/Zanesville), built 1929, S/N DS3001 - [N4902](https://openairdocs.org/aircraft/N4902): [Poplar Grove Airmotive Inc](https://openairdocs.org/faa-owner/POPLAR%20GROVE%20AIRMOTIVE%20INC), [Poplar Grove, IL](https://openairdocs.org/faa-place/IL/Poplar%20Grove), built 1928, S/N A2 - [N4W](https://openairdocs.org/aircraft/N4W): [Kreiter Kevin B](https://openairdocs.org/faa-owner/KREITER%20KEVIN%20B), [Camas, WA](https://openairdocs.org/faa-place/WA/Camas), S/N X3101 - [N5020](https://openairdocs.org/aircraft/N5020): [Bowe Walter C Trustee](https://openairdocs.org/faa-owner/BOWE%20WALTER%20C%20TRUSTEE), [Sonoma, CA](https://openairdocs.org/faa-place/CA/Sonoma), S/N A-3 - [N5785](https://openairdocs.org/aircraft/N5785): [Paul Richard](https://openairdocs.org/faa-owner/PAUL%20RICHARD), [Fresno, CA](https://openairdocs.org/faa-place/CA/Fresno), built 1928, S/N A-9 - [N604N](https://openairdocs.org/aircraft/N604N): [Hawk Aviation LLC](https://openairdocs.org/faa-owner/HAWK%20AVIATION%20LLC), [Springville, NY](https://openairdocs.org/faa-place/NY/Springville), built 1929, S/N A-3107 - [N608N](https://openairdocs.org/aircraft/N608N): [Cyr Gregory A](https://openairdocs.org/faa-owner/CYR%20GREGORY%20A), [Auburn, ME](https://openairdocs.org/faa-place/ME/Auburn), built 1929, S/N 3070 - [N625N](https://openairdocs.org/aircraft/N625N): [Hirtle Alan L](https://openairdocs.org/faa-owner/HIRTLE%20ALAN%20L), [Oro Valley, AZ](https://openairdocs.org/faa-place/AZ/Oro%20Valley), S/N B-3145 - [N662N](https://openairdocs.org/aircraft/N662N): [Pinkerton Tim A](https://openairdocs.org/faa-owner/PINKERTON%20TIM%20A), [Trotwood, OH](https://openairdocs.org/faa-place/OH/Trotwood), S/N C-3204 - [N662Y](https://openairdocs.org/aircraft/N662Y): [Calvert Jared C](https://openairdocs.org/faa-owner/CALVERT%20JARED%20C), [Ranger, TX](https://openairdocs.org/faa-place/TX/Ranger), S/N 3228 - [N6940](https://openairdocs.org/aircraft/N6940): built 1929, S/N 3004 - [N699K](https://openairdocs.org/aircraft/N699K): [Hirtle Alan L](https://openairdocs.org/faa-owner/HIRTLE%20ALAN%20L), [Oro Valley, AZ](https://openairdocs.org/faa-place/AZ/Oro%20Valley), S/N 70 - [N701E](https://openairdocs.org/aircraft/N701E): [Nurge Richard J](https://openairdocs.org/faa-owner/NURGE%20RICHARD%20J), [Gilroy, CA](https://openairdocs.org/faa-place/CA/Gilroy), S/N 1942 - [N7091](https://openairdocs.org/aircraft/N7091): [Embry Riddle Aeronautical University](https://openairdocs.org/faa-owner/EMBRY%20RIDDLE%20AERONAUTICAL%20UNIVERSITY), [Daytona Beach, FL](https://openairdocs.org/faa-place/FL/Daytona%20Beach), built 1928, S/N A10 - [N709E](https://openairdocs.org/aircraft/N709E): [Baker James L](https://openairdocs.org/faa-owner/BAKER%20JAMES%20L), [Hallettsville, TX](https://openairdocs.org/faa-place/TX/Hallettsville), S/N A101 - [N763E](https://openairdocs.org/aircraft/N763E): [Hogan Thomas A](https://openairdocs.org/faa-owner/HOGAN%20THOMAS%20A), [Fairfield, OH](https://openairdocs.org/faa-place/OH/Fairfield), built 1929, S/N A-114 - [N766E](https://openairdocs.org/aircraft/N766E): [Rambo Gene](https://openairdocs.org/faa-owner/RAMBO%20GENE), [Falls Church, VA](https://openairdocs.org/faa-place/VA/Falls%20Church), S/N A-120 - [N766K](https://openairdocs.org/aircraft/N766K): [Radial Engines Ltd](https://openairdocs.org/faa-owner/RADIAL%20ENGINES%20LTD), [Guthrie, OK](https://openairdocs.org/faa-place/OK/Guthrie), S/N 823 - [N768K](https://openairdocs.org/aircraft/N768K): [Hone Ryan L](https://openairdocs.org/faa-owner/HONE%20RYAN%20L), [Dixie, ID](https://openairdocs.org/faa-place/ID/Dixie), built 1929, S/N A162 - [N775K](https://openairdocs.org/aircraft/N775K): [Curry Steve C](https://openairdocs.org/faa-owner/CURRY%20STEVE%20C), [Guthrie, OK](https://openairdocs.org/faa-place/OK/Guthrie), S/N A-95 - [N8369](https://openairdocs.org/aircraft/N8369): [Hirtle Alan L](https://openairdocs.org/faa-owner/HIRTLE%20ALAN%20L), [Oro Valley, AZ](https://openairdocs.org/faa-place/AZ/Oro%20Valley), S/N A-73 - [N8540](https://openairdocs.org/aircraft/N8540): [Hirtle Alan L](https://openairdocs.org/faa-owner/HIRTLE%20ALAN%20L), [Oro Valley, AZ](https://openairdocs.org/faa-place/AZ/Oro%20Valley), S/N A-67 - [N931H](https://openairdocs.org/aircraft/N931H): [Ollmann Paul W](https://openairdocs.org/faa-owner/OLLMANN%20PAUL%20W), [Poplar Grove, IL](https://openairdocs.org/faa-place/IL/Poplar%20Grove), built 1929, S/N A143 - [N9500](https://openairdocs.org/aircraft/N9500): [Dean James J](https://openairdocs.org/faa-owner/DEAN%20JAMES%20J), [Sanford, NC](https://openairdocs.org/faa-place/NC/Sanford), built 1928, S/N 26 - [N9503](https://openairdocs.org/aircraft/N9503): [C A S Aerobatic LLC](https://openairdocs.org/faa-owner/C%20A%20S%20AEROBATIC%20LLC), [Carthage, MO](https://openairdocs.org/faa-place/MO/Carthage), built 1928, S/N 24 - [N9504](https://openairdocs.org/aircraft/N9504): [Nichols Charles F Trustee](https://openairdocs.org/faa-owner/NICHOLS%20CHARLES%20F%20TRUSTEE), [Baldwin Park, CA](https://openairdocs.org/faa-place/CA/Baldwin%20Park), S/N 32 - [N9534](https://openairdocs.org/aircraft/N9534): [Hirtle Alan L](https://openairdocs.org/faa-owner/HIRTLE%20ALAN%20L), [Oro Valley, AZ](https://openairdocs.org/faa-place/AZ/Oro%20Valley), S/N A-29 - [N9538](https://openairdocs.org/aircraft/N9538): [Hawk Aviation LLC](https://openairdocs.org/faa-owner/HAWK%20AVIATION%20LLC), [Springville, NY](https://openairdocs.org/faa-place/NY/Springville), S/N A-37 - [N9541](https://openairdocs.org/aircraft/N9541): [C A S Aerobatic LLC](https://openairdocs.org/faa-owner/C%20A%20S%20AEROBATIC%20LLC), [Carthage, MO](https://openairdocs.org/faa-place/MO/Carthage), built 1928, S/N A-41 ## NTSB investigations (10) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA26LA280](https://openairdocs.org/ntsb/ERA26LA280), Jul 24, 2026: Waco ASO (N119Y), Hamilton, OH, substantial damage. Probable cause: The separation of the right main landing gear axle, which resulted in a loss of control during the landing roll. - [NTSB IAD04CA015](https://openairdocs.org/ntsb/IAD04CA015), Apr 9, 2004: Waco ASO (N11253), Lexington, KY, substantial damage. Probable cause: The pilot's inadequate remedial action to wake turbulence. A factor was the pilot's failure to recognize that the takeoff conditions were conducive to wake turbulence. - [NTSB LAX91LA256](https://openairdocs.org/ntsb/LAX91LA256), Jun 9, 1991: Weaver WACO-ASO (N4W), Montague, CA, substantial damage. Probable cause: FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE AND IMPROPER USE OF THE BRAKES. - [NTSB CHI88LA202](https://openairdocs.org/ntsb/CHI88LA202), Aug 12, 1988: Waco ATO (N763E), Middletown, OH, substantial damage - [NTSB IAD79FLQ03](https://openairdocs.org/ntsb/IAD79FLQ03), Oct 29, 1978: Waco ASO (N11253), Mt Sterling, KY, substantial damage - [NTSB NYC75FGM51](https://openairdocs.org/ntsb/NYC75FGM51), Jun 29, 1975: Waco ASO (N268M), Belle Vernon, PA, substantial damage - [NTSB CHI70D0091](https://openairdocs.org/ntsb/CHI70D0091), Jun 29, 1969: Waco ASO (N763E), Dayton, OH, substantial damage - [NTSB MIA68D0230](https://openairdocs.org/ntsb/MIA68D0230), Jul 26, 1967: Waco ASO (N9500), Timmonsville, SC, substantial damage - [NTSB MIA67F0251](https://openairdocs.org/ntsb/MIA67F0251), Sep 2, 1966: Waco ASO (N9500), Timmonsville, SC, substantial damage - [NTSB UNK64X2808](https://openairdocs.org/ntsb/UNK64X2808), Jul 13, 1964: Waco ASO (N268M), Delta Bridge, LA, substantial damage ## FAA accident and incident reports (13) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20260724010089A](https://openairdocs.org/incident/20260724010089A), Jul 24, 2026: Waco ASO (N119Y), Hamilton, OH, Substantial damage. On July 24, 2026, a Waco Aso, registration [privacy data omitted], departed khao (Butler county regional airport) for a local flight with one pilot and three… - [Incident 20220701011589I](https://openairdocs.org/incident/20220701011589I), Jul 1, 2022: Waco ASO (N768K), Richland, WA, Minor damage. Pilot stated on landing the right brake had little or no braking action and began to swerve back and forth and was unable to maintain directional control… - [Accident 20040409005189A](https://openairdocs.org/incident/20040409005189A), Apr 9, 2004: Waco ASO (N11253), Lexington, KY, Substantial damage. (-23) Apparent wake turbulence. Subject a/c took off shortly after an MD-80 series landed. The pilot believes wake turbulence was the cause of the accident. - [Accident 20020629038389A](https://openairdocs.org/incident/20020629038389A), Jun 29, 2002: Waco ASO (N763E), Mount Vernon, OH, Substantial damage. (-23) On June 29, 2002, the pilot departed the wyncoop (6G4) airport with two passengers. The pilot made the following statement when interviewed about the… - [Accident 20020602017609A](https://openairdocs.org/incident/20020602017609A), Jun 2, 2002: Waco ASO (N662Y), Goodland, KS, Substantial damage. (.19) On June 2, 2002, at 1330 central daylight time, a Waco Aso, N662Y, was substantially damaged during landing when it veered off runway 23 (3,501 feet by… - [Accident 19910609020489A](https://openairdocs.org/incident/19910609020489A), Jun 9, 1991: Waco ASO (N4W), Montague, CA, Substantial damage. Tail wheel vibrated. Lost directional control. Right main clogged with grass leaving runway. Nosed over. - [Accident 19910416010749A](https://openairdocs.org/incident/19910416010749A), Apr 16, 1991: Waco ASO (N7091), Lake Apopka, FL, Destroyed, 3 fatal. Dived over lake several times. On last dive pulled up stalled and spun into lake. - [Accident 19880812032599A](https://openairdocs.org/incident/19880812032599A), Aug 12, 1988: Waco ATO (N763E), Middletown, OH, Substantial damage. Engine quit on climbout. Fuel selector on aux tank which ran dry. Hit a tree and flipped over in a pond returning. - [Incident 19870704063369I](https://openairdocs.org/incident/19870704063369I), Jul 4, 1987: Waco ASO (N763E), Hamilton, OH, Minor damage. The left gear collapsed when the aircraft veered on landing roll. A weld in the axle housing failed. - [Incident 19810801054129I](https://openairdocs.org/incident/19810801054129I), Aug 1, 1981: Doug DC10* (N1826), Omaha, NE. Za aircraft made unscheduled landing due to engine spool down. No problem found during ground operation. - [Accident 19781029034219A](https://openairdocs.org/incident/19781029034219A), Oct 29, 1978: Waco ASO (N11253), Mt Sterling, KY, Substantial damage - [Incident 19780822048469I](https://openairdocs.org/incident/19780822048469I), Aug 22, 1978: Waco ASO (N11253), Lexington, KY, Minor damage. Aircraft left runway on rollout due to broken bead area in wheel. Hayes kelsey model 752A, assy no. G373. - [Accident 19750629019859A](https://openairdocs.org/incident/19750629019859A), Jun 29, 1975: Waco ASO (N268M), Belle Vernon, PA, Substantial damage. Apld full pwr with acft in extreme nose hi attitude. Eng did not respond to rapid throttle use. ## STCs that may be installed (OpenAirDocs) (16) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc - [STC SA01406NY](https://openairdocs.org/stc/SA01406NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and rotary wing. Airwolf Filter Corporation - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA04776NY (1 OF 2)](https://openairdocs.org/stc/SA04776NY%20(1%20OF%202)): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc - [STC SA1008WE](https://openairdocs.org/stc/SA1008WE): Installation of Poly-Fiber covering material. Poly-Fiber Inc - [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International - [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International - [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International - [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [STC SA3862NM PAGE 2](https://openairdocs.org/stc/SA3862NM%20PAGE%202): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. Electronics International - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International - [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc - [STC SA01240SE (5 OF 5)](https://openairdocs.org/stc/SA01240SE%20(5%20OF%205)) (historical): Installation of secondary voltage indication system. Visual Instruments LLC - [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.