Trans Bharat Aviation has elevated its DGCA CAR-145 mandate at AONE Helipad, Jaipur.

One of India’s prominent NSOP, Trans Bharat Aviation(TBA) has secured DGCA CAR-145 maintenance mandate at AONE Helipad, Jaipur which is a decisive elevation of its national MRO architecture and India’s technical sovereignty in rotary-wing aviation.

With this enhancement, TBA now commands a truly integrated, end-to-end maintenance continuum, comprising:

• A3 Rating: Aircraft Inspections across Bell 407 series, Bell 206L series & AS350 B3.
• B1 Rating: Engine Inspections on the Rolls-Royce M250-C47 series, C30 series & RR300 series.
• C7 Rating: C47 series, C30 series, RR 300 series.
• C10 & C11 Rating: O/H of Main Rotor Hub Assy, Mast Assy, Freeweheel, T/R Hub, Swashplate Assy,Transmission Assy,TGB Assy, Rotor Brake Calipers, Brake Disc on 206 A/B/L series and Bell 407 series Helicopter—an exceptionally rare and formidable spectrum under a single Indian MRO.

The strategic consequence is profound: Compressed inspection cycles, Superior fleet readiness, Materially reduced Aircraft on-Ground exposure, and the establishment of a strong regional maintenance—all executed under the highest stratum of safety, regulatory fidelity, and engineering exactitude.

With this latest approval, TBA now operates one of the most comprehensive helicopter maintenance infrastructures in the Indian sub-continent, supported by dedicated, DGCA-approved hangars, engine workshop, component workshops, and live operational helipad access at Jaipur.

Approved Maintenance Scope on Bell Helicopters

Under our revised CAR-145 Approval Schedule, TBA is now authorised for the following extensive capabilities on Bell platforms:

A3 – Aircraft (Helicopters):
• Bell 407 Series (RR M250-C47 Engines)
• Bell 206L Series (RR M250-C30 Engines)
• AS350 B3 Helicopter Series

Full airframe, systems, lubrication and out-of-phase inspections as per DGCA and OEM requirements.

B1 – Turbine Engines:
• Rolls-Royce M250-C47 Series
• Rolls-Royce M250-C30 Series
• Rolls-Royce RR300 Series

Engine inspection and maintenance up to 2000 hours including module-level support as per OEM manuals.

C7 – Engine Components:

Component inspection, repair and replacement on M250-C47, C30 and RR300 engines as per CSP21001, 14W2 and CSP21009.

C10 & C11 – Dynamic & Transmission Components:
Overhaul and repair of:
• Main Rotor Hub Assembly
• Mast Assembly
• Freewheel Assembly
• Tail Rotor Hub Assembly
• Swash-plate Assembly
• Pitch Link Assembly
• Transmission Assembly
• Tail Rotor Gear Box (TGB)
• Tail Drive Shaft & Hanger Assemblies
• Rotor Brake Calipers & Brake Disc
(All approved on Bell 206 A/B/L and Bell 407 series as per Bell CR&O and AMM provisions)

Trans Bharat Aviation is exhibiting at Wings India 2026. Visit them at : Hall C ; Booth 49 C(A)