# Waco UBF - Type: Aircraft model (FAA registry) - Registry code: 9600404 - Manufacturer (registry): WACO - Model: UBF - 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 473](https://openairdocs.org/tcds/ATC%20473) (OpenAirDocs) - Holder: The Waco Aircraft Company - Registered aircraft: 13 - Page: https://openairdocs.org/model/waco-ubf 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 (13) - [N12002](https://openairdocs.org/aircraft/N12002): [Coonan Gary M](https://openairdocs.org/faa-owner/COONAN%20GARY%20M), [Bell Buckle, TN](https://openairdocs.org/faa-place/TN/Bell%20Buckle), S/N 3619 - [N12443](https://openairdocs.org/aircraft/N12443): [Steeves Brian](https://openairdocs.org/faa-owner/STEEVES%20BRIAN), [Wahpeton, ND](https://openairdocs.org/faa-place/ND/Wahpeton), built 1932, S/N 3606 - [N1244G](https://openairdocs.org/aircraft/N1244G): [Flyboy LLC](https://openairdocs.org/faa-owner/FLYBOY%20LLC), [Tampa, FL](https://openairdocs.org/faa-place/FL/Tampa), built 1932, S/N 3607 - [N13027](https://openairdocs.org/aircraft/N13027): [Western Antique Aeroplane & Automobile Museum](https://openairdocs.org/faa-owner/WESTERN%20ANTIQUE%20AEROPLANE%20%26%20AUTOMOBILE%20MUSEUM), [Hood River, OR](https://openairdocs.org/faa-place/OR/Hood%20River), built 1932, S/N 3660 - [N13071](https://openairdocs.org/aircraft/N13071): [Period Aviation LLC](https://openairdocs.org/faa-owner/PERIOD%20AVIATION%20LLC), [Babylon, NY](https://openairdocs.org/faa-place/NY/Babylon), built 1933, S/N 3689 - [N13074](https://openairdocs.org/aircraft/N13074): [Borgerson Mark J](https://openairdocs.org/faa-owner/BORGERSON%20MARK%20J), [Montevideo, MN](https://openairdocs.org/faa-place/MN/Montevideo), built 1933, S/N 3691 - [N13075](https://openairdocs.org/aircraft/N13075): [Braatz Ronald W](https://openairdocs.org/faa-owner/BRAATZ%20RONALD%20W), [Bend, OR](https://openairdocs.org/faa-place/OR/Bend), built 1933, S/N 3692 - [N13419](https://openairdocs.org/aircraft/N13419): [Ray Jimmy](https://openairdocs.org/faa-owner/RAY%20JIMMY), [Southlake, TX](https://openairdocs.org/faa-place/TX/Southlake), built 1933, S/N 3762 - [N13442](https://openairdocs.org/aircraft/N13442): [Owls Head Transportation Museum](https://openairdocs.org/faa-owner/OWLS%20HEAD%20TRANSPORTATION%20MUSEUM), [Owls Head, ME](https://openairdocs.org/faa-place/ME/Owls%20Head), built 1932, S/N 3766 - [N13444](https://openairdocs.org/aircraft/N13444): [Dream Waco LLC](https://openairdocs.org/faa-owner/DREAM%20WACO%20LLC), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 1933, S/N 3763 - [N13446](https://openairdocs.org/aircraft/N13446): [Prince William H](https://openairdocs.org/faa-owner/PRINCE%20WILLIAM%20H), [Beverly, MA](https://openairdocs.org/faa-place/MA/Beverly), built 1933, S/N 3765 - [N155Y](https://openairdocs.org/aircraft/N155Y): [Texas Barnstorming Museum](https://openairdocs.org/faa-owner/TEXAS%20BARNSTORMING%20MUSEUM), [Hallettsville, TX](https://openairdocs.org/faa-place/TX/Hallettsville), built 1932, S/N 3618 - [N2091K](https://openairdocs.org/aircraft/N2091K): [Cournoyer John J](https://openairdocs.org/faa-owner/COURNOYER%20JOHN%20J), [Ellsinore, MO](https://openairdocs.org/faa-place/MO/Ellsinore), built 1932, S/N 3608 ## STCs approved for it (12) - [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 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 SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc. - [STC SA628WE](https://openairdocs.org/stc/SA628WE): Ceconite 101 covering of entire airframe.. Cooper Engineering Corporation - [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc - [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 ## NTSB investigations (3) 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 ERA25LA319](https://openairdocs.org/ntsb/ERA25LA319), Jul 31, 2025: Waco UBF (N1244G), Tampa, FL, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing roll, which resulted in a runway excursion and collision with an object. - [NTSB SEA91LA166](https://openairdocs.org/ntsb/SEA91LA166), Aug 11, 1991: Waco UBF (N13075), Lincoln City, OR, substantial damage. Probable cause: IMPROPER PLANNING/DECISION BY THE PILOT, AND HIS DELAY IN ABORTING THE TAKEOFF. THE TAILWIND & PROXIMITY OF TREES/BRUSH WERE RELATED FACTORS. - [NTSB LAX82DA189](https://openairdocs.org/ntsb/LAX82DA189), May 23, 1982: Piper PA-44-180 (N2091K), Chandler, AZ, destroyed ## FAA accident and incident reports (5) 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 20250731011839A](https://openairdocs.org/incident/20250731011839A), Jul 31, 2025: Waco UBF (N1244G), Tampa, FL, Substantial damage. Pilot did a wheell landing and held the tail wheel off the ground until aircraft slowed. Aircraft continued down the runway and a gust of wind from the… - [Incident 20230421004689I](https://openairdocs.org/incident/20230421004689I), Apr 21, 2023: Waco UBF (N13074), Los Angeles, CA, Minor damage. The pilot stated that he was taxing the aircraft and weaving back and forth for visibility. He then applied the brakes to move back to the left for clearence… - [Incident 20110901022149I](https://openairdocs.org/incident/20110901022149I), Sep 1, 2011: Waco UBF (N13442), Owlshead, ME, Minor damage. While taxiing in on the grass after landing the tubing parted at the lower end of the gear cabane next to the welded axle end. The right wing went down and the… - [Accident 19910811034509A](https://openairdocs.org/incident/19910811034509A), Aug 11, 1991: Waco UBF (N13075), Lincoln City, OR, Substantial damage. Tried to take off downwind in rough water. Aborted too late entered area of logs. Wing hit tree prior to stopping. - [Accident 19820522046669A](https://openairdocs.org/incident/19820522046669A), May 22, 1982: Piper PA44180 (N2091K), Chandler, AZ, Destroyed. Aircraft crashed during attempted emergency landing at night on highway. Engine quit due to fuel exhaustion. ## Service difficulty reports (2) As reported by operators and repair stations, by the model named in the report. - [SDR 2015FA0000569](https://openairdocs.org/sdr/2015FA0000569), Sep 15, 2015: LOCK NUT. BROKEN. ON REMOVING THE REAR CASE OF THIS ENGINE, FOUND 7 BROKEN .3125 LOCK NUTS. ALSO FOUND 3 BROKEN NUTS ON THE OIL PUMP WHICH IS ATTACHED TO THE REAR CASE. SOME OF T - [SDR 2015FA0000555](https://openairdocs.org/sdr/2015FA0000555), Sep 15, 2015: LOCK NUT. BROKEN. ON REMOVING THE REAR CASE OF THIS ENGINE, FOUND Y BROKEN .3125 LOCK NUTS. ALSO FOUND 3 BROKEN NUTS ON THE OIL PUMP WHICH IS ATTACHED TOTHE REAR CASE SOME OF THO --- 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.