Bell 206 Tail Gearbox

Bell 206 Tail Gearbox. The Bell 206 Tail Rotor Gearbox Assembly is one of the most vital systems on the aircraft, directly supporting yaw control, directional stability, and safe helicopter maneuvering. This assembly, carrying Part Number 206-040-402-003 and Serial Number A-1462, has been freshly overhauled and documented at 0.0 hours since overhaul (TSO) with a total time since new (TSN) of 620.0 hours. For Bell 206 operators, the condition of the tail rotor gearbox is not just a mechanical detail – it is central to flight safety and mission confidence, a fact emphasized throughout Bell’s own technical support and product platforms such as Bell Textron Helicopter Support. Bell 206 Tail Gearbox | Affordable Aircraft Parts

Bell 206 Tail Gearbox

Fresh Overhaul – Zero Time Since Overhaul

This gearbox has undergone a professional overhaul to current technical standards, returning it to a like-new service condition. At 0.0 TSO, it is ready to begin a fresh maintenance cycle in its next aircraft. The overhaul included complete teardown, inspection, replacement of applicable components, reassembly, and testing in accordance with current specifications. Guidance consistent with overhaul standards and component traceability is reflected in helicopter maintenance best practices discussed by the FAA Aviation Maintenance Division, underscoring the importance of documented service and inspection history.

Bell 206 Tail Gearbox

620.0 Total Time Since New with Renewed Service Life

With 620.0 TSN, this gearbox remains well within its lifecycle limits and now benefits from reset time since overhaul. Operators gain the dual advantages of known total lifetime usage and the clean slate provided by zero time since overhaul. This transparency supports fleet management planning, component tracking, and residual value protection for airframes remaining in long-term service. Bell 206 Tail Gearbox | Affordable Aircraft Parts

Bell 206 Tail Gearbox

Includes FAA 8130 Airworthiness Certification

Accompanying the gearbox is a valid FAA Form 8130, confirming airworthiness approval and compliance verification. For commercial, private, and fleet aircraft operations, proper documentation is essential for installation approval, audit readiness, and safety management systems. FAA documentation requirements and airworthiness traceability align directly with guidance and regulatory material maintained on FAA Aircraft Certification Services, reinforcing the value of properly certified components such as this one. Bell 206 Tail Gearbox | Affordable Aircraft Parts

Bell 206 Tail Gearbox

Fully Modified and Compliant with Key Technical Bulletins

This Bell 206 tail rotor gearbox benefits from completed factory-approved modifications and technical bulletin compliance, including:

• Improved Tail Rotor Gearbox Seals
  TB206-94-150 and TB206-96-164 Rev “A”
  These modifications address known wear and fluid containment concerns, improving sealing capability and environmental protection.

• Gearbox Modification per BHT-206B3-CR&O-4, Rev 7
  This comprehensive revision ensures compliance with Bell’s updated overhaul and operational standards, enhancing durability and operational consistency through improved components and assembly requirements.

Completion of these bulletins does more than satisfy regulatory checklists – it materially improves reliability and helps extend service intervals, which is frequently emphasized in Bell’s maintenance publications and rotorcraft support guidance. Bell 206 Tail Gearbox | Affordable Aircraft Parts

Bell 206 Tail Gearbox

Precision Engineering for Demanding Helicopter Operations

Tail rotor gearboxes operate under constantly high rotational stress, temperature variation, and aerodynamic load. This overhauled assembly has undergone the inspections and component replacements required to restore it to mission-ready condition. With 0.0 TSO, operators can install it knowing the unit begins a new service record immediately under their control.

Clean, Traceable Maintenance History

The gearbox is supported by a clear chain of records and historical documentation, allowing operators to integrate it confidently into maintenance management systems. Traceability is non-negotiable in helicopter operations, particularly for flight-critical components such as tail rotor systems. Complete documentation allows confidence during audits, resale, inspections, and continued operational tracking.

Ideal for Fleet Support and Maintenance Programs

This Bell 206 tail rotor gearbox assembly is well suited for:

• commercial fleet operators

• helicopter leasing organizations

• maintenance and overhaul shops

• private Bell 206 owners

• AOG spares inventory

With full modification compliance, overhaul completion, and 0.0 TSO status, it provides immediate operational value without the uncertainty of mid-life or partially documented components.

The Bell 206 Tail Rotor Gearbox Assembly – P/N 206-040-402-003 / S/N A-1462 delivers a rare combination of fresh overhaul, 0.0 time since overhaul, 620.0 TSN, FAA 8130 documentation, and completed factory modifications. Purpose-built for one of the world’s most iconic light helicopters, it offers renewed service life, proven reliability, and the documentation integrity required for professional rotary-wing operations. Ready for installation and ready for service, it stands prepared to support the next mission of the Bell 206 platform with confidence and precision.