N51726: 2003 Bill Robert HERCULES TRIKE, Red Bluff, CA

Registered owner: Bill Robert R
Location: Red Bluff, CA
Owner type: Individual
Serial number: 031351 RRB
Year built: 2003
Type: Weight-shift-control
Engine: 2 cycle
Airworthiness: Experimental, registered before 01/31/08
Airworthiness date: August 11, 2007
Certificate issued: August 3, 2007
Expires: April 30, 2028
Mode S code: A67E2D

Bill Robert HERCULES TRIKEAirframe model · 2 seats · 1 engine · 1 registered Engine modelRotax 503 DCDI

From the FAA registry file of October 24, 2026.

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Airworthiness directives that may apply · 0

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

No ADs matched this aircraft’s modelsADs on appliances, propellers and installed equipment aren’t matched by model; check those separately.

Information bulletins that may apply

Advisory, not mandatory.

No bulletins matched this aircraft’s models

NTSB investigations

No NTSB investigations matched to N51726Matched 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 Bill Robert HERCULES TRIKE aircraft

Investigations on N51726 not matched to an aircraft · 1

They name N51726, but no registry record covers the date, the aircraft registered then was built later, or the investigation describes another aircraft.

NTSB ANC86FA055Accident · 1 fatalField investigationFinal reportEnstrom F28C · Turnagain, AKThe helicopter was observed flying along the highway at a low altitude and it then struck some high power transmission lines, fell to the ground and burned upon impact. The transmission lines were 283 feet above the road surface and spanned a distance of 1127…May 12, 1986 · Destroyed

FAA incident reports

No FAA accident or incident reports matched to N51726Matched 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 Bill Robert HERCULES TRIKE aircraft

Reports on N51726 not matched to an aircraft · 3

They name N51726, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

Incident 19980323017179IEMB EMB120ER · Rochester, NYFlap disagreement. Missing moisture darin, plunger found and reinstalled. Ops check ok. Corrected slow flap movement.Mar 23, 1998 Incident 19921016045509IEMB EMB120RT · Rochester, NYUnable to retract gear after takeoff. Returned.landed safely. Nose gear"a"system down lock proximity sensor replaced.Oct 16, 1992 · Minor damage Accident 19860511016639AEnstrm F28C · Turnagain Pass, AKThe helicopter struck wires while operating at a low altitude.May 11, 1986 · Destroyed

Service difficulty reports

No reports matched to N51726General 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 Bill Robert HERCULES TRIKE aircraft

Reports on N51726 not matched to an aircraft · 50

They name N51726, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

SDR C2XA01IA415Warning Light · false indicationDURING FLIGHT 3951 FROM MLU TO IAH THE CREW NOTED THAT THE RIGHT MAIN LANDING GEAR SYSTEM B-RED LIGHT ILLUMINATES IN FLIGHT. MAINTENANCE PERFORMED A OPERATIONAL CHECK OF THE LANDING GEAR SYSTEM, NO DEFECTS NOTED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERDec 7, 2001 · N51726 · Emb EMB120ER · Landing Gear Position and Warning SDR C2XA01IA410Proximity Sensor · out of adjLCH- DURING FLIGHT 3817, THE CREW NOTED THAT RIGHT MAIN GEAR, SYSTEM B-RED LIGHT FLASHES ON/OFF IN FLIGHT WITH GEAR UP. MAINTENANCE ADJUSTED THE UPLOCK PROX SENSOR ON THE RIGHT MAIN GEAR, PERFORMED A OPERATIONAL CHECK, NO DEFECTS NOTED AND THE AIRCRAFT WAS ADec 7, 2001 · N51726 · Emb EMB120ER · Landing Gear Position and Warning SDR C2XA01IA385Battery · dischargedDURING SCHEDULED MAINTENANCE THE EMERGENCY LIGHTING SYSTEM IN THE CABIN WAS FOUND TO BE DIM. MAINTENANCE REMOVED AND REPLACED THE #2 EMERGENCY LIGHTING BATTERY, PERFORMED AN OPERATIONAL CHECK OF THE SYSTEM AND APPROVE3D THE AIRCRAFT FOR RETURN TO SERVICE.Oct 27, 2001 · N51726 · Emb EMB120ER · Emergency Lighting

See all 50 unmatched reports

STCs that may be installed

No STCs matched this aircraft’s modelsSTCs change type-certificated designs, and this aircraft isn’t type certificated.

Earlier aircraft with this N-number · 2

These aircraft carried N51726 before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.

1949Ryan Aeronautical PT-22 · S/N 41-21004Cancelled Feb 10, 1949 · George David Wisner, Syracuse, NY UndatedEnstrom F-28C · S/N 419Cancellation date not recorded · Triennial form not returned

N51726