# N32077: 1941 Waco YPF-7 - Status: Valid registration - Airframe: [Waco YPF-7](https://openairdocs.org/model/waco-ypf-7) (registry code 9601606, 3 seats) - Engine: [Jacobs L4 /R755-7](https://openairdocs.org/engine/jacobs-l4-r755-7) (registry code 35003) - Data sheets: [TCDS ATC 586](https://openairdocs.org/tcds/ATC%20586) (The Waco Aircraft Company) (OpenAirDocs) - Serial number: 5709 - Year built: 1941 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: May 7, 1975 - Certificate issued: May 7, 2009 - Expires: April 30, 2030 - Mode S code: A371BD - Registered owner: [Memorial Aviation Inc](https://openairdocs.org/faa-owner/MEMORIAL%20AVIATION%20INC) - Location: [Fresno, TX](https://openairdocs.org/faa-place/TX/Fresno) - Owner type: Corporation - Owner's area on the map: 29.5373° N, 95.4730° W: Placed by OpenAirDocs at the center of ZIP code 77545, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=32077 - Page: https://openairdocs.org/aircraft/N32077 From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 0 in force ### Matched by airframe (Waco YPF-7) None in force. ### Matched by engine (Jacobs L4 /R755-7) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN10CA213](https://openairdocs.org/ntsb/CEN10CA213), Mar 27, 2010: Waco YPF-7 (N32077), Houston, TX, substantial damage. Probable cause: The pilot's inability to maintain control during landing due to the failure of the tailwheel locking mechanism to remain engaged prior to landing. - [NTSB FTW81FPJ02](https://openairdocs.org/ntsb/FTW81FPJ02), Oct 19, 1980: Waco YPF-7 (N32077), Oklahoma City, OK, substantial damage ## FAA accident and incident reports (2) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20100327031899A](https://openairdocs.org/incident/20100327031899A), Mar 27, 2010: Waco YPF-7 (N32077), Arcola, TX, Substantial damage. The pilot reported that the landing was normal, until the tail wheel became unlocked. Pilot was unable to control the direction of the plane, even with the use… - [Accident 19801019063509A](https://openairdocs.org/incident/19801019063509A), Oct 19, 1980: Waco YPF7 (N32077), Oklahoma City, OK, Substantial damage. Lost directional control on takeoff roll veered off runway into parked airplane. ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (16) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Waco YPF-7) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA02498CH](https://openairdocs.org/stc/SA02498CH): Installation of Cleveland Wheel and barke Kit 199-64 (including 30-28D brake assembly and 40-40B wheel assembly). Rare Aircraft Ltd - [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 SA00556SE](https://openairdocs.org/stc/SA00556SE): Replacement of airplane fuselage frame structure with The WACO Aircraft Co. Inc. fuselage. Rare Aircraft Ltd - [STC SA00331SE](https://openairdocs.org/stc/SA00331SE): Installation of replacement engine mount. Vintage Aircraft Tours Inc - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [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 SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International - [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing 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 SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. 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](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 ## Related - Other Waco YPF-7 aircraft: https://openairdocs.org/model/waco-ypf-7/aircraft.md - The Jacobs L4 /R755-7 engine: https://openairdocs.org/engine/jacobs-l4-r755-7.md --- 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.