# N663N: 1930 Waco ATO

- Status: Valid registration
- Airframe: [Waco ATO](https://openairdocs.org/model/waco-ato) (registry code 9601212, 3 seats)
- Engine: [Wright 760E-1](https://openairdocs.org/engine/wright-760e-1) (registry code 67010)
- Data sheets: [TCDS ATC 123](https://openairdocs.org/tcds/ATC%20123) (The Waco Aircraft Company) (OpenAirDocs)
- Serial number: D-3128
- Year built: 1930
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: August 11, 2004
- Certificate issued: March 4, 2013
- Expires: March 31, 2029
- Mode S code: A8C08A
- Registered owner: [Gypsy Air Tours LLC](https://openairdocs.org/faa-owner/GYPSY%20AIR%20TOURS%20LLC)
- Location: [Madison, WI](https://openairdocs.org/faa-place/WI/Madison)
- Owner type: LLC
- Owner's area on the map: 43.0796° N, 89.3784° W: Placed by OpenAirDocs at the center of ZIP code 53703, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=663N
- Page: https://openairdocs.org/aircraft/N663N

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 ATO)

None in force.

### Matched by engine (Wright 760E-1)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N663N.

## FAA accident and incident reports

None matched to N663N.

## Service difficulty reports (1)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2015FA0000415](https://openairdocs.org/sdr/2015FA0000415), Aug 29, 2015: WHEEL. BROKEN. THE "BUSHWHEEL" MODEL 3224 IS AN FAA-PMA DIRECT REPLACEMENT TAILWHEEL FOR THE SCOTT 3200 USED ON MANY CERTIFIED ANTIQUE AIRPLANES. DURING LANDING THE ALUMINUM F

## STCs that may be installed (OpenAirDocs) (13)

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 ATO)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [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 SA02057SE](https://openairdocs.org/stc/SA02057SE): Modification of aircraft and installation of Jacobs L-6MB engine, a Hamilton Standard 2B-20-9 propeller, a Cessna 195 engine ring mounted on a WACO ATO engine mount, and associated accessories and hardware on WACO ATO, serial number A-81. Richard Melhoff
- [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 SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc
- [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 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 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 ATO aircraft: https://openairdocs.org/model/waco-ato/aircraft.md
- The Wright 760E-1 engine: https://openairdocs.org/engine/wright-760e-1.md

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