Registered owner
Buck Robin F
Location
Kent, WA
Owner type
Individual
Serial number
1
Year built
2001
Type
Fixed wing single engine
Engine
Reciprocating
Airworthiness
Experimental, amateur built
Airworthiness date
September 19, 2001
Certificate issued
May 8, 2000
Expires
April 30, 2027
Mode S code
A1DE82

From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Franklin 6A4165 model are included below.

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Airworthiness directives that may apply · 4

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

1963In forceSuperseded2026
ADs by the year they took effect: 2 ADs
19631
19961

Information bulletins that may apply

Advisory, not mandatory.

No bulletins matched this aircraft’s models

NTSB investigations

No NTSB investigations matched to N21988Matched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Buck Robin F BUCKSTON B2+2 aircraft

FAA incident reports

No FAA accident or incident reports matched to N21988Matched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Buck Robin F BUCKSTON B2+2 aircraft

Service difficulty reports

No reports matched to N21988General aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Buck Robin F BUCKSTON B2+2 aircraft

STCs that may be installed · 12

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.

Engine · Franklin 6A4165 series

STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22Swift Fuels LLC · Lists 6A4-165-B3STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.Alcor LLC · Lists 6A4-165-B3STC SE1311SOInstallation of Shivers carburetor temperature gauge with a Richter Aero Equipment B-5 carburetor temperature probe.LegacySTC.com · Lists 6A4-165-B3STC SE03309CHInstallation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt applicationHartzell Propeller Inc. · Lists 6A4-165-B3STC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft enginesGeneral Aviation Modifications Inc. · Lists 6A4-165-B3STC SE4178NMInstallation of oil filter kitFranklin Aircraft Engines Inc. · Lists 6A4-165-B3STC SE3331NMLycoming valve cover gasketReal Gaskets Tennessee · Lists 6A4-165-B4STC SE110CHInstallation of Slick Model 6399 magnetos.Champion Aerospace LLC · Lists 6A4-165-B3STC SE1-201Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D))MidContinent Instru Co Inc · Lists 6A4-165-B4STC SE1696GLInstallation of nose seal retainer.Skaggs Robert G · Lists 6A4-165-B3STC SE2127CEAdd the following approved fuel unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved.Petersen Aviation Inc · Lists 6A4-165-B3STC SE4-1192Adapter to permit Bendix Scintilla magneto installation, Type SF6LN-8, and modification of carburetor- manifold adapter box.Van De Water Devel Co · Lists 6A4-165-B3

Earlier aircraft with this N-number · 2

These aircraft carried N21988 before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.