The U.S. aircraft register, updated daily

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Registered aircraft · FAA record as of November 3, 2026
N4101M

Burkhart Grob Flugzeugbau G103 TWIN ASTIR

ValidFAA registration status code V: Valid registration. All codesMichigan

N4101M is a Burkhart Grob Flugzeugbau G103 TWIN ASTIR, a glider with no engine, built in 1983. It has 2 seats. It is registered to Sandhill Soaring Club INC, a corporation in Brighton, Michigan. The registration is valid: it was issued on November 5, 2019 and expires on November 30, 2029. It holds a standard airworthiness certificate for glider, dated June 21, 1983.

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Flight history: where it flew in the last seven days · follow it on the live map

Aircraft

Maker
Burkhart Grob Flugzeugbau
Model
G103 TWIN ASTIR · all G103 TWIN ASTIRs and related versions
Built of
composite
The 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 Burkhart Grob Flugzeugbau G103 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
3796
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
1983
Transponder code
A4D6A7 (octal 51153247)

Registration

Status
Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
Certificate issued
November 5, 2019
Expires
November 30, 2029
Last FAA action
September 15, 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 · June 21, 1983
FAA region
Great LakesFAA region code C (the FAA regional office that handles the record). All codes
FAA record id
00381364

Owner as the FAA publishes it

Name
Sandhill Soaring Club INC (flying club: its whole fleet and safety record)
Type
CorporationFAA type of owner code 3 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
Address
PO Box 1891
Brighton, MI 48116-5691
Learn to fly in N4101M with Sandhill Soaring Club INC:

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 2

1983-03-22Lockheed 382C · exported to Saudi Arabia · Valid registration
1956-03-22Piper PA-12 · Valid registration

Connections how N4101M links to the rest of the register

Design
Owner
Place
Airworthiness

The whole map of how records connect · these connections as data: /graph/aircraft/N4101M.json.

Records check free · 2 to understand · 3 clear

The public federal record on N4101M, 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.

CLEARRegistration and identity

Valid registration to Sandhill Soaring Club INC, a corporation, certificate issued November 5, 2019, expires November 30, 2029. No fractional interest recorded. [1]

CLEARAirworthiness certificate

Standard certificate for glider, dated June 21, 1983, consistent with the 1983 manufacture year. [1]

CLEARPrior registrations of this airframe

No earlier tail number is recorded against serial 3796 for this model in the deregistered file. [2]

ATTENTIONTail number reuse

N4101M was previously assigned to 2 other aircraft: Lockheed 382C (serial 4845, cancelled March 22, 1983); Piper PA-12 (serial 12-2996, cancelled March 22, 1956). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]

NOTERecent registry documents

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]

ATTENTIONAccident and incident record

2 NTSB records under N4101M: Accident on June 3, 2026 at Gregory, MI: no injuries, substantial damage. Accident on June 26, 1993 at Ionia, MI: no injuries, substantial damage. Details below. [4]

PENDINGTitle chain, liens and 337 forms

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.

PENDINGAirworthiness directives and utilization

AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.

NTSB records 2

CEN26LA233Accident on June 3, 2026 at Gregory, MI: no injuries, substantial damage.

Aircraft on the NTSB record: Burkhart Grob Flugzeugbau G103 TWIN ASTIR · operated under 091

The flight instructor’s improper planning during the simulated aborted launch which resulted in a touchdown on unsuitable terrain.

Full record in plain English · Docket and reports at the NTSB

CHI93LA230Accident on June 26, 1993 at Ionia, MI: no injuries, substantial damage.

Aircraft on the NTSB record: Burkhart Grob G103 · operated under 091

THE PILOT IN COMMAND'S FAILURE TO MAINTAIN THE PROPER GLIDEPATH.

Full record in plain English · Docket and reports at the NTSB

CLEAR the source was checked and shows no adverse findingATTENTION a fact a buyer or lender should understand, often routineNOTE context onlyPENDING covered by the full report
  1. FAA Releasable Aircraft Database, master file, file of November 3, 2026. registry.faa.gov/
  2. FAA deregistered aircraft file (part of the same download), file of November 3, 2026. registry.faa.gov/
  3. FAA document index: registry documents received in recent weeks, file of November 3, 2026. registry.faa.gov/
  4. 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 3, 2026. See this record on the FAA site · This record as data