Grumman G-21A
N5548A is a Grumman G-21A, a fixed-wing airplane with more than one motor with a piston engine, built in 1959. It has 8 seats. It is registered to Stage One Associates LLC, an LLC in Oxford, Connecticut. The registration is valid: it was issued on April 1, 2026 and expires on April 30, 2033. It holds a standard airworthiness certificate, dated March 25, 1960.
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Aircraft
- Maker
- Grumman
- Model
- G-21A · all G-21As and related versions
- Built of
- aluminiumThe airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. This is how the Grumman G-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
- 75-7661
- Type
- Fixed-wing, multi-engineFAA type of aircraft code 5 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
- Power
- Piston (reciprocating)FAA type of engine code 1 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes, 2 motors · P&W R-985 SERIES · 450 hp
- Seats
- 8
- Year built
- 1959
- Cruising speed
- 150 mph
- Transponder code
- A711B8 (octal 51610670)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- April 1, 2026
- Expires
- April 30, 2033
- Last FAA action
- April 1, 2026
- 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 · March 25, 1960
- FAA region
- New EnglandFAA region code E (the FAA regional office that handles the record). All codes
- FAA record id
- 00243545
Owner as the FAA publishes it
- Name
- Stage One Associates LLC
- Type
- LLCFAA type of owner code 7 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
- Address
- C/O Tradewind Aviation
3 Juliano Dr
Oxford, CT 06478
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 N5548A links to the rest of the register
- Grumman G-21 35 registered
- Grumman 442 aircraft on the register
- Built of aluminium · as the model family is built; the register does not record it per aircraft
- Pratt & Whitney R-985 series 1,593 aircraft with this engine series · 450 hp
- Stage One Associates LLC 7 aircraft in the fleet
- Oxford, CT 67 aircraft registered in this town
- Waterbury-Oxford Airport · OXC
- Connecticut 1,607 aircraft registered
- FAA orders naming the Grumman G-21 10 airworthiness directives
- Approved modifications for the Grumman G-21 40 supplemental type certificates
- Failure reports on the Pratt & Whitney R-985 series 80 reports since 1995
The whole map of how records connect · these connections as data: /graph/aircraft/N5548A.json.
Records check free · 1 to understand · 4 clear
The public federal record on N5548A, 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 Stage One Associates LLC, an LLC, certificate issued April 1, 2026, expires April 30, 2033. No fractional interest recorded. [1]
Standard certificate, dated March 25, 1960, consistent with the 1959 manufacture year. [1]
No earlier tail number is recorded against serial 75-7661 for this model in the deregistered file. [2]
No other airframe has carried N5548A 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]
1 NTSB record under N5548A: Accident on March 25, 1999 at Lauderdale Lake, FL: fatal, destroyed (1 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: Grumman G-21A · operated under 091
The pilots failure to correctly identify an in-flight emergency (fluctuating manifold pressure and rpm due to a disconnected spark plug lead / unscrewed ignition lead shroud) and failure to complete the engine shutdown procedure once it was initiated (propeller not feathered). This resulted in a forced landing and subsequent in-flight collision with a tree, dirt bank and canal. Contributing to the accident was the FAA inspectors improper supervision of the pilot, and the improper supervision of the inspector by her supervisor, in his failure to follow written procedures / directives in assigning a non-current inspector to conduct a competency flight.
Full record in plain English · Docket and reports at the NTSB
- 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