Schleicher ASW-20
N251B is a Schleicher ASW-20, a glider with no engine, built in 1979. It has 1 seat. It is registered to an individual in Dublin, California. The registration is valid: it was issued on December 27, 2017 and expires on December 31, 2027. It holds an experimental airworthiness certificate for racing, dated May 15, 1980.
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Flight history: where it flew in the last seven days · follow it on the live map
Aircraft
- Maker
- Schleicher
- Model
- ASW-20 · all ASW-20s and related versions
- Built of
- compositeThe airframe is composite: carbon fibre or glass fibre set in resin, moulded in large pieces with few joints, which gives smooth shapes but needs different inspection and repair methods from metal. A glass-fibre glider. This is how the Schleicher ASW-20 family is built; the FAA does not record construction for each aircraft, and the type certificate data sheet is the authority for this one.
- Serial number
- 20274
- Type
- GliderFAA type of aircraft code 1 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
- Power
- NoneFAA type of engine code 0 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes · None NONE
- Seats
- 1
- Year built
- 1979
- Transponder code
- A25B4E (octal 50455516)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- December 27, 2017
- Expires
- December 31, 2027
- Last FAA action
- April 7, 2023
- Airworthiness
- ExperimentalFAA airworthiness class code 4 (the kind of airworthiness certificate it flies under and what it is approved for). Every aircraft with this code · All codes · RacingFAA certificate purpose code 4 (the kind of airworthiness certificate it flies under and what it is approved for). All codes · May 15, 1980
- FAA region
- Western-PacificFAA region code 4 (the FAA regional office that handles the record). All codes
- FAA record id
- 00121825
Owner as the FAA publishes it
- Name
- Anklam Thomas M
- Type
- IndividualFAA type of owner code 1 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
- Address
- 11890 W Vomac Rd
Dublin, CA 94568-1049
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Earlier use of this number 3
Connections how N251B links to the rest of the register
- Schleicher ASW-20 101 registered
- Schleicher 506 aircraft on the register
- Built of composite · as the model family is built; the register does not record it per aircraft
- Dublin, CA 16 aircraft registered in this town
- California 27,897 aircraft registered
- Failure reports filed on the Schleicher ASW-20 1 reports since 1995
The whole map of how records connect · these connections as data: /graph/aircraft/N251B.json.
Records check free · 2 to understand · 3 clear
The public federal record on N251B, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Anklam Thomas M, an individual, certificate issued December 27, 2017, expires December 31, 2027. No fractional interest recorded. [1]
Experimental certificate for racing, dated May 15, 1980, consistent with the 1979 manufacture year. [1]
No earlier tail number is recorded against serial 20274 for this model in the deregistered file. [2]
N251B was previously assigned to 3 other aircraft: Piper AEROSTAR 601P (serial 61P08128063422, cancelled September 28, 1998); Aero Commander 680T (serial 1587, cancelled November 25, 1977); Colonial C-1 (serial 11, cancelled July 21, 1964). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
1 NTSB record under N251B: Accident on November 17, 1996 at Eagle, CO: fatal, destroyed (5 fatal). Details below. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
NTSB records 1
Aircraft on the NTSB record: Piper AEROSTAR 601P · operated under 091
The pilot initiating flight into known adverse weather conditions without proper certification. Factors were the meteorological conditions that existed --- low ceiling, low visibility, and falling snow --- and his use of contraindicated drugs.
Full record in plain English · Docket and reports at the NTSB
- FAA Releasable Aircraft Database, master file, file of November 6, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of November 6, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of November 6, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through October 28, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, November 6, 2026. See this record on the FAA site · This record as data