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Schleicher ASK-21
N128KS is a Schleicher ASK-21, a glider with no engine. It has 2 seats. It is registered to co-owned owners in Los Alamos, New Mexico. The registration is valid: it was issued on February 25, 2021 and expires on February 29, 2028. It holds a standard airworthiness certificate for glider, dated December 28, 1985.
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Aircraft broadcast their own position; volunteer receivers pool what they hear. Owners who have asked the FAA not to be displayed are not shown.
Flight history: where it flew in the last seven days · follow it on the live map
Aircraft
- Maker
- Schleicher
- Model
- ASK-21 · all ASK-21s 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 ASK-21 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
- 21273
- 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
- 2
- Year built
- Not given
- Transponder code
- A0725C (octal 50071134)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- February 25, 2021
- Expires
- February 29, 2028
- Last FAA action
- April 21, 2023
- Airworthiness
- StandardFAA airworthiness class code 1 (the kind of airworthiness certificate it flies under and what it is approved for). Every aircraft with this code · All codes · GliderFAA certificate purpose code G (the kind of airworthiness certificate it flies under and what it is approved for). All codes · December 28, 1985
- FAA region
- SouthwesternFAA region code 2 (the FAA regional office that handles the record). All codes
- FAA record id
- 00341606
Owner as the FAA publishes it
- Name
- Mah Richard
- Type
- Co-ownedFAA type of owner code 4 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
- Address
- 4 Primrose Ln
Los Alamos, NM 87544-1588 - Co-owners
- Collins Ashton B III Trustee
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.
Connections how N128KS links to the rest of the register
- Schleicher ASK-21 43 registered
- Schleicher 506 aircraft on the register
- Built of composite · as the model family is built; the register does not record it per aircraft
- Los Alamos, NM 46 aircraft registered in this town
- Los Alamos Airport · LAM
- New Mexico 3,108 aircraft registered
The whole map of how records connect · these connections as data: /graph/aircraft/N128KS.json.
Records check free · 0 to understand · 4 clear
The public federal record on N128KS, 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 Mah Richard, a co-owned, certificate issued February 25, 2021, expires February 29, 2028. No fractional interest recorded. [1]
Standard certificate for glider; the FAA file gives no certificate date and no manufacture year. [1]
No earlier tail number is recorded against serial 21273 for this model in the deregistered file. [2]
No other airframe has carried N128KS according to the deregistered file. [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]
No NTSB investigation records located under N128KS. CLEAR means the query ran and returned nothing, not that nothing ever happened. [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.
- FAA Releasable Aircraft Database, master file, file of October 23, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 23, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 23, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through September 30, 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, October 23, 2026. See this record on the FAA site · This record as data