# N25BM: 2008 Machen William R KR2S

- Status: Valid registration
- Airframe: [Machen William R KR2S](https://openairdocs.org/model/machen-william-r-kr2s) (registry code 05621FO, 2 seats)
- Engine: [Revmaster 2100](https://openairdocs.org/engine/revmaster-2100) (registry code 52550)
- Serial number: 1192
- Year built: 2008
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: March 15, 2008
- Certificate issued: July 12, 2016
- Expires: July 31, 2029
- Mode S code: A2554A
- Registered owner: [Whittley Stephen Wayne](https://openairdocs.org/faa-owner/WHITTLEY%20STEPHEN%20WAYNE)
- Location: [Adkins, TX](https://openairdocs.org/faa-place/TX/Adkins)
- Owner type: Individual
- Owner's area on the map: 29.3536° N, 98.2383° W: Placed by OpenAirDocs at the center of ZIP code 78101, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=25BM
- Page: https://openairdocs.org/aircraft/N25BM

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 (Machen William R KR2S)

None in force.

### Matched by engine (Revmaster 2100)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N25BM.

## NTSB investigations on N25BM not matched to an aircraft (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 FTW04LA148](https://openairdocs.org/ntsb/FTW04LA148), May 23, 2004: Bruce Moore Skybolt (N25BM), Altus, OK, substantial damage. Probable cause: The partial in-flight separation of the wing fabric and rib structure due to an inadequate material installed by the airplane builder.

## FAA accident and incident reports

None matched to N25BM.

## Reports on N25BM not matched to an aircraft (1)

They name N25BM, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Accident 20040523015629A](https://openairdocs.org/incident/20040523015629A), May 23, 2004: Amtr SKYBOLT (N25BM), Altus, OK, Substantial damage. (-23) During aerobatics maneuvers the pilot noticed the fabric of the top wing right side coming loose and departing the aircraft. The pilot reduced power,…

## 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 N25BM not matched to an aircraft (1)

They name N25BM, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR 2004FA0000518](https://openairdocs.org/sdr/2004FA0000518), Jun 8, 2004: FABRIC. FAILED. 5 FEET OF THE TOP RT WING FABRIC FAILED. POLYFIBER AC COATINGS TB 89-1D. STATES FABRIC WEIGHING LESS THAN 2.4 OZ SHOULD BE USED ON AC WITH ENGINES UP TO 145 HOR

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Machen William R KR2S aircraft: https://openairdocs.org/model/machen-william-r-kr2s/aircraft.md
- The Revmaster 2100 engine: https://openairdocs.org/engine/revmaster-2100.md

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