# N3100U: 1988 Ayres S2R-T65, registration cancelled 2008-10-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 24, 2008
- Status when cancelled: Second triennial form not returned
- Airframe: [Ayres S2R-T65](https://openairdocs.org/model/ayres-s2r-t65) (registry code 0970109)
- Engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52032)
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW) (OpenAirDocs)
- Serial number: T65-005DC
- Year built: 1988
- Type of aircraft: Fixed wing single engine
- Engine type: Turbo-prop
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: October 12, 1988
- Certificate issued: January 4, 1990
- Last registry action: June 23, 2008
- Mode S code: A3493C
- Owner when cancelled: [United States Department Of State](https://openairdocs.org/faa-owner/UNITED%20STATES%20DEPARTMENT%20OF%20STATE)
- Location: [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- Owner type: Government
- Owner's area on the map: 38.8947° N, 77.0485° W: Placed by OpenAirDocs at the center of ZIP code 20520, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N3100U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3100U
- Page: https://openairdocs.org/deregistered/N3100U-2008-10-24

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Ayres S2R-T65: https://openairdocs.org/model/ayres-s2r-t65.md

## NTSB investigations (1)

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 MIA97GA059](https://openairdocs.org/ntsb/MIA97GA059), Jan 7, 1997: Ayres S2RHG-T65 (N3100U), Guaviare, Colombia, destroyed, 1 fatal. Probable cause: the pilot's failure to maintain adequate altitude/clearance while maneuvering at a low altitude.

## Other aircraft with N3100U

- [Registered now](https://openairdocs.org/aircraft/N3100U): Cameron Balloons US Z-250, S/N 6972

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