# N5557X: 1978 Ayres S-2R

- Status: Valid registration
- Airframe: [Ayres S-2R](https://openairdocs.org/model/ayres-s-2r) (registry code 0970101, 1 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2426R
- Year built: 1978
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: March 8, 1978
- Certificate issued: February 12, 2001
- Expires: July 31, 2029
- Mode S code: A71561
- Registered owner: [Carmichael Matthew G](https://openairdocs.org/faa-owner/CARMICHAEL%20MATTHEW%20G)
- Location: [Presque Isle, ME](https://openairdocs.org/faa-place/ME/Presque%20Isle)
- Owner type: Individual
- Owner's area on the map: 46.6884° N, 67.9933° W: Placed by OpenAirDocs at the center of ZIP code 04769, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5557X
- Page: https://openairdocs.org/aircraft/N5557X

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. The registry lists only the engine series, so ADs for every Pratt & Whitney R1340 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Ayres S-2R)

None in force.

### Matched by engine (Pratt & Whitney R1340 series)

None in force.

### Historical (superseded or no longer in force)

- [AD 97-17-03](https://openairdocs.org/ad/97-17-03) (historical): Lower Spar Cap Bolt Hole Areas · Ayres 600 S-2D, S-2R, S2R-G1 and 12 more. Effective Sep 5, 1997
- [AD 97-13-11](https://openairdocs.org/ad/97-13-11) (historical): Lower Spar Cap Bolt Hole Areas · Ayres 600-S-2C, S-2R, S2R-G1 and 12 more. Effective Jul 23, 1997

## Information bulletins (advisory) (1 in force)

- [SAIB ACE-98-42](https://openairdocs.org/saib/ACE-98-42): . Issued Jul 24, 1998

## NTSB investigations

None matched to N5557X.

## FAA accident and incident reports (3)

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.

- [Incident 20240615007419I](https://openairdocs.org/incident/20240615007419I), Jun 15, 2024: Ayres Corporation S-2R (N5557X), Presque Isle, ME, Minor damage. 06/15/2024 @ 1009Z - Presque Isle, ME, aircraft [privacy data omitted], Ayres Corporation, S2R, experienced engine failure and made an emergency landing in a…
- [Incident 19940623025949I](https://openairdocs.org/incident/19940623025949I), Jun 23, 1994: Ayres S2RRESTD (N5557X), Hazelton, ID, Minor damage. Ran out of fuel. Flipped over on forced landing.
- [Incident 19920815055819I](https://openairdocs.org/incident/19920815055819I), Aug 15, 1992: Ayres S2RRESTD (N5557X), Umatilla, OR. Experienced engine roughness and smoke. Forced landing in wheat field. NR1 cylinder head separated from barrel.

## 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)

None matched to this aircraft's models.

## Related

- Other Ayres S-2R aircraft: https://openairdocs.org/model/ayres-s-2r/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.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.