# N265M: Waco CSO

- Status: Valid registration
- Airframe: [Waco CSO](https://openairdocs.org/model/waco-cso) (registry code 9601206, 3 seats)
- Data sheets: [TCDS ATC 240](https://openairdocs.org/tcds/ATC%20240) (The Waco Aircraft Company) (OpenAirDocs)
- Serial number: AT-3007
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: October 23, 2019
- Expires: October 31, 2029
- Mode S code: A292A3
- Registered owners: [Allen David K](https://openairdocs.org/faa-owner/ALLEN%20DAVID%20K), [Allen Jeanne M](https://openairdocs.org/faa-owner/ALLEN%20JEANNE%20M)
- Location: [Elbert, CO](https://openairdocs.org/faa-place/CO/Elbert)
- Owner type: Co-owned
- Owner's area on the map: 39.1861° N, 104.5159° W: Placed by OpenAirDocs at the center of ZIP code 80106, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=265M
- Page: https://openairdocs.org/aircraft/N265M

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 CSO)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N265M.

## FAA accident and incident reports

None matched to N265M.

## 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.

## Service difficulty reports on N265M not matched to an aircraft (5)

They name N265M, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR UVVR2010042800007](https://openairdocs.org/sdr/UVVR2010042800007), Apr 28, 2010: SKIN. CORRODED. (UVVR) WHILE AIRCRAFT WAS STRIPPED FOR A PAINT JOB, VISUAL INSPECTION OF LT WING OVERWING FAIRING WAS DELAMANATED. AFTER FUTHER PANEL REMOVAL, FOUND CORROSION E
- [SDR DGCA10523](https://openairdocs.org/sdr/DGCA10523), Feb 6, 2010: CIRCUIT BREAKER. BROKEN. AIRCRAFT LOST ALL EMERGENCY POWER.
- [SDR DGCA06009](https://openairdocs.org/sdr/DGCA06009), Jan 2, 2006: CARBON SEAL. FAILED. AFTER DEPARTURE, PLTS NOTICED RT ENG OIL PRESSURE WAS ABOVE THE GREEN ARC INTO THE YELLOW. PULLED BACK ON THE THROTTLE AND THE OIL PRESSURE FOLLOWED THE THROTTL
- [SDR DGCA05020](https://openairdocs.org/sdr/DGCA05020), Feb 10, 2005: CONTROL BOX. MALFUNCTIONED. DC VOLTAGE "SPIKE", CAUSING MULTIPLE COMPONENT/SYSTEM FAILURES, CIRCUIT BREAKERS POPPING.
- [SDR 02341](https://openairdocs.org/sdr/02341), Oct 22, 2002: BEARING. FAILED. PILOT BEGAN FEELING VIBRATION FROM LEFT ENGINE, LEFT GENERATOR HOT LIGHT CAME ON, FOLLOWED BY GENERATOR FAILURE.

## STCs that may be installed (OpenAirDocs) (10)

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 CSO)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber 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 SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems 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 SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc
- [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 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 CSO aircraft: https://openairdocs.org/model/waco-cso/aircraft.md

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