# N990BB: 2025 Donald W Delahanty JR AL18

- Status: Valid registration
- Airframe: [Donald W Delahanty JR AL18](https://openairdocs.org/model/donald-w-delahanty-jr-al18) (registry code 05642T4, 2 seats)
- Engine: [Aerosport IO-375-M2S](https://openairdocs.org/engine/aerosport-io-375-m2s) (registry code 01330)
- Serial number: AL-396
- Year built: 2025
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: American Legend Aircraft Co AL18
- Airworthiness: Standard, balloon
- Airworthiness date: April 30, 2025
- Certificate issued: November 26, 2024
- Expires: November 30, 2031
- Mode S code: ADD2BE
- Registered owner: [Delahanty Donald W Jr](https://openairdocs.org/faa-owner/DELAHANTY%20DONALD%20W%20JR)
- Location: [Gahanna, OH](https://openairdocs.org/faa-place/OH/Gahanna)
- Owner type: Individual
- Owner's area on the map: 40.0381° N, 82.8727° W: Placed by OpenAirDocs at the center of ZIP code 43230, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=990BB
- Page: https://openairdocs.org/aircraft/N990BB

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 (Donald W Delahanty JR AL18)

None in force.

### Matched by engine (Aerosport IO-375-M2S)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N990BB.

## FAA accident and incident reports

None matched to N990BB.

## 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 N990BB not matched to an aircraft (1)

They name N990BB, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR YVB2005F00000](https://openairdocs.org/sdr/YVB2005F00000), Jan 25, 2005: PROXIMITY SWITCH. WARPED. (CNTRL NR 0501) DURING TAKEOFF, LANDING GEAR WOULD NOT COME UP (HANDLE WOULD). WHEN GEAR HANDLE WAS PUT DONW, 3 GREEN DOWN AND LOCK AND AUTO SLAT LIGHT ON THE G

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Donald W Delahanty JR AL18 aircraft: https://openairdocs.org/model/donald-w-delahanty-jr-al18/aircraft.md
- The Aerosport IO-375-M2S engine: https://openairdocs.org/engine/aerosport-io-375-m2s.md

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