Welcome to Overhaul Division Bangalore of HAL (Bangalore Complex).
Overhaul Division, one of the oldest Divisions of HAL was established in December 1940, has been involved from early days in the growth of aircraft industry in India. Between 1942 and 1945, the Division maintained and repaired varieties of aircraft like Liberator, Fortress, Mitchell, Dakota, Curtis Commando and PBY Catalina amphibian aircraft. After 1947, the Division oriented its activities to Major Overhaul of aircraft of Indian Air Force and Indian Navy and rendering 1st and 2nd Line Maintenance support to aircraft at various IAF and Naval Bases.
The Division, with over 80 years of experience in aircraft MRO has serviced over 4500 aircraft of different types and over 6500 Piston Engines.
The Division has since emerged as a world class MRO agency for the maintenance and servicing of state-of- the-art Military aircraft and associated accessories. It also renders highly competent maintenance and retrofit support at user’s works.
Currently it is the only Organization authorized to undertake Major Inspection of Mirage 2000 aircraft outside France.
Spread over an area of more than 10 hectares of land, Overhaul Division is empowered by a highly skilled workforce comprising of more than 1000 personnel supported by over 250 well qualified and experienced Executives.
The Division has a well equipped Accessories Repair / Overhaul Centre with excellent infrastructure to handle sophisticated Mechanical, Pneumatic and Avionic accessories. Highly sensitive testing equipment are employed during Repair / Overhaul of over 900 types of system accessories.
Overhaul Division has the following approvals & Quality Certifications:
- Director General of Aeronautical Quality Assurance (DGAQA), MOD, India
- M/s. Dassault Aviation, France
- M/s. BAE Systems, UK
- AS9100D & AS9110C certified
- ISO 14001:2015 EMS.
- Dedicated Hangars for each aircraft platform
- Well-equipped MRO centers for Repair /Overhaul of all aircraft system components
- Aircraft Painting facility
- Dedicated Hangars for calibration of Health & Usage Monitoring System of Hawk aircraft
- Wind Tunnel facility
- Specific to Type Testers and Equipment for all aircraft platforms
- Universal Test rigs for testing of Major aircraft system LRUs
- Non Destructive Testing facility
- Metrology facility
- Facility to test complete aircraft looms of Mirage aircraft
- Hydrostatic Stretch Test facility
- Oxygen and Nitrogen boosting facility
- Calibration of testers and measurements
- Clean room & ESD workstations
- Computerized Charging & Discharging facility

Overhaul Division has partnerships with a number of Approved and Accredited suppliers apart from
Original Equipment Manufacturers (OEMs).
Stringent Quality Control Checks are ensured during the approval / acceptance of outsourced components.
Outsourcing is resorted for following activities / services:
- Fabrication of project spares identified.
- Manufacture of Ground Handling Equipment and Ground Support Equipment.
- Fabrication of Tools and Fixtures.
- Calibration of Gauges.
- Jig referencing and Plating Operations.
- Work Package for Aircraft Painting.
- Work Package for Aircraft de-painting.
- Work package for cleaning of Rotables.
- Work Package for Looms dismantling and kitting of removed spares.
A list of existing Approved Vendors for Outsourcing is given below. The Division is making continuous efforts to identify New Vendors and make further additions to this list:
| Sl. no. |
Supplier Name | City | Scope Of Work |
| 1 | Aerospace Engineers | Salem | Machining Components |
| 2 | Alpha Tocol Engineering Services Pvt. Ltd. | Bangalore | CNC Milling, Sheet Metal Components,Structural Assembly, Work Packages |
| 3 | Amazon Engineering India Pvt Ltd, | Bangalore | CNC machining |
| 4 | Amphenol Interconnect India Pvt. Ltd. | Bangalore | Manufacturing of Cable Assemblies, Panels & Laser Wire Marking and Electric Harness |
| 5 | Applied Optics Inc | Bangalore | Indigenization of Laser Glass, Rear view mirrors, Toughened Glass, Quatrz Glass |
| 6 | Ashwin Engineering Works | Bangalore | Conventional Machining |
| 7 | AvioHeliTronics Infosystems Pvt. Ltd. | Bangalore | CNC Machining, GHE and Tools,JIGS and Fixtures. |
| 8 | Concentra | Bangalore | Conventional and CNC Machining |
| 9 | Craftair | Bangalore | GHE/Machining,Jigs,Fixture, Pres tools and and Fabrication Job work |
| 10 | Karnataka Engg. Enterprises | Bangalore | Machining Components |
| 11 | Karnataka Press Tools | Bangalore | Sheet Metal components |
| 12 | Krafield | Bangalore | GHE/Machining,Jigs,Fixture, Pres tools and and Fabrication Job work |
| 13 | Mahant Tool Room | Bangalore | Machining Components |
| 14 | Merlinhawk Aerospace Pvt. Ltd. | Bangalore | Cables Assembly, Looms Aseembly, cable printing, Electrical assembly |
| 15 | Micron Engineers | Bangalore | GHE/Machining,Jigs,Fixture, Pres tools and and Fabrication Job work |
| 16 | Millennium Aero Dynamics Pvt Ltd | Mumbai | Painting / Depainting works |
| 17 | Omega Engineers | Bangalore | Tools, Jigs, Fixtures and Moulds |
| 18 | Prathibha Industries | Bangalore | Conventional and CNC Machining |
| 19 | Qualidels | Bangalore | Machining Components |
| 20 | Radel Advance Technolgy Pvt.Ltd | Bangalore | Electrical Assemblies |
| 21 | Shanmukha Industries, | Bangalore | Conventional and CNC Machining |
| 22 | Shirvanthe Technologies Ltd | Bangalore | GSE and GHE for Aerospace |
| 23 | Sika Interplant Systems ltd | Bangalore | Electric cables and harness and Loom and LRU Manufacturing and testing |
| 24 | Softec Services | Bangalore | GHE/GSE,Tool testers and Fabrication Job work |
| 25 | Sree Hari Enterprises | Bangalore | Conventional and CNC Machining |
| 26 | Sri Balaji Industries | Bangalore | Conventional Machining |
| 27 | Sri Shakthi Industries | Bangalore | Conventional and CNC Machining |
| 28 | Supratech | Bangalore | Conventional and CNC Machining |
| 29 | SYS Industries | Bangalore | CNC Machining |
| 30 | TE Connectivitiy Inda Pvt. Ltd. | Bangalore | Fabrication of Looms |
| 31 | Weltech Industries | Bangalore | GHE/Machining,Jigs,Fixture, Pres tools and and Fabrication Job work |
| 32 | Seven Hills Industries | Bangalore | Conventional and CNC Machining |
| 33 | Cube Aerospace | Bangalore | Conventional and CNC Machining |
| 34 | Byraveshwar Engineering Enterprises | Bangalore | Conventional and CNC Machining |
| 35 | Sarvadih Industries | Bangalore | Conventional and CNC Machining |
| 36 | Quality Tools | Bangalore | Precision Gear and Shaft Manufactring |
| 37 | Saab Engineering | Bangalore | machining Components,jigs and fixtures,sheet metal component |
| 38 | Sattva Aero Accessories and System pvt Ltd | Bangalore | Cnc turning,milling and Armatures Electrical assy |
| 39 | Shree Ram Engineering | Bangalore | conventional machining and cnc turning |
| 40 | HTL Ltd | Hosur | ELECTRICAL LOOM ASSY.AND TESTING,ELECTRICAL CABLES,WIRE HARNESS ASSY.FOR AEROSPACE APPLICATION |
| 41 | Air Works India (Engineering ) Pvt Ltd. | Hosur | AIRPLANE FULL PAINTING,AIRCRAFT MAINTENCE, MAJOR SERVICE OF AIRCRAFT, STRUCTURAL REPAIR FOR AIRCRAFT AND COMPONENTS |
| 42 | Acess Space Tec. | Bangalore | Work package for jehier cutting and stitching activity. |
| 43 | Fluidyne Engineers India | Mysore | MACHINNED COMPONENT,INDIGENIZATION OF METALIC BELLOWS. |
| 44 | Harini Industries | Bangalore | MACHINE SPARE PATS,CNC MACHINING,TOOLS ETC. |
| 45 | M/S NAGA SAI PRECITECH PVT LTD (LN320) | Bangalore | Machined Components ,CNC Milling snd Turning |
| 46 | M/S IFB AUTOMOTIVE PVT LTD (LI313) | Bangalore | Sheet metal components, Machined Components, CNC Machining, Turning ,GHE and GSE. |
| 47 | M/S NeAL NAINI (LN321) | Prayagraj | MANUFACTURER,REPAIR AND SERVICE OF CABLE HARNESSES ,BOXES AND PANELS |
| 48 | MECH WELL INDUSTRIES LIMITED (service) | Nashik | Painting / Depainting works |


Overhaul Division is providing MRO support for Kiran MK I/IA & IIA evolved from 1960 which are indigenously designed & developed by HAL.
- On completion of 800 flying hours, Aircraft are inducted to Overhaul Division for Major Servicing.
- Currently 111h Major Servicing is being performed by Division.
- Division is providing constant support to customer base for maintaining highest level of serviceability of most aged Aircraft despite challenges due to obsolescence
Overhaul Division is the approved repair agency for carrying out Major servicing of Jaguar Aircraft and its accessories by OEM M/s BAE Systems, UK.
MAJOR SERVICING
On completion of 2000 flying hours or 10 years whichever is earlier, Aircraft are inducted to Overhaul Division for Major servicing. The servicing include structural repairs, electrical checks & repairs, Fuel leak rectifications, NDT checks on structure, Looms replacement etc..
Overhaul Division is the only Service agency approved by OEM M/s. Dassault Aviation, France to undertake Major Inspection of Mirage 2000 Aircraft outside France.
MAJOR INSPECTION
On completion of 2000 Flying hours or 12 years of calendar life whichever is earlier, Mirage aircraft is inducted for Major Inspection at Overhaul Division. Major Inspection includes activities such as Structural repairs, Fuel tank sealant renewal, Hydraulic pipe line replacement, NDT checks, complete range of electrical loom testing etc.
Overhaul Division is the Authorized Repair agency with non-exclusive Global rights for carrying out Repair and Overhaul of Hawk Aircraft.
MAJOR SERVICING
On completion of 2000 flying hours of 12 years, Hawk Mk 132 aircraft are inducted to Overhaul Division for undertaking Major servicing of Hawk Mk132 Aircraft including Structural, Electrical and Airframe repairs, Fatigue Modifications, NDT checks, Painting etc.
Overhaul Division is involved in upgrade of Jaguar Aircraft since four decade from NavWAAS to DARIN standard I/II/III. Currently DARIN Ill Upgrade is under progress.
Aircraft upgrade incorporates new avionics architecture including Advance Mission Computer. Engine and Flight Instrument System (EFIS). Modern navigation, EW and weapon delivery system, INGPS, Glass cockpit, Head up display. Incorporation of AESA Radar and Software Defined Radio (SDR). Smart Multi-Function Displays and Head-Up Display
MIRAGE UPGRADE
Overhaul Division is involved in upgrade of Mirage 2000 Aircraft from H/TH to I/TI standard since 2015.
Mirage upgrade of IAF enhances operational, maintenance and weapon handling capabilities. Upgrade Incorporates:
- ROY Multimode RADAR
- Modular Data Processing Unit(MDPU)
- RLG based INGPS
- MIL 15538 and Digi bus
- Glass Cockpit
- Night Vision Goggle(NVG) compatible cockpit
- High Band Jammer(HBJ)
- Solid State Video Recording System(SSDVRS)
- Mission Planning and De-briefing tool
- Air to Air and Air to Ground Missiles
- Mission Computer (HAL design)
- Laser Designation Pod(LOP)
- Helmet Mounted Display System(HMDS)
- Counter Measure Dispensing System(CMDS)
- New Generation Precision Guided Missile (NGPGM)
- Air Combat Manoeuvring Instrumentation (ACMI)
Overhaul Division is involved in Repair, Overhaul,Accessories of Mirage, Jaguar, Hawk, Kiran, ALH ,Modification and testing of over 900 types of Cheetah, Chetak, Sea King, Avro, Mig 21, Mig 27, Dornier etc,
Division posses dedicated component workshops for all Aircraft Systems, Specific to type test equipment & Tools, OEM Testers, ATEs, Universal rigs for various systems.
Other facilities includes wind tunnel, Universal balancing m/c for wheels, ESD workstations & ESD flooring, Clean rooms, Environmentally controlled work areas, Environmental Test Chambers, Bearing hospital, Hydrostatic Stretch test facility, Generator test facility, Calibration facility, Metrology facility, Centrifuge, General Purpose Testing etc

Overhaul Division has initiated establishment of facility to undertake Major Servicing of LCA.
Ageing Study 3 (AGS 3) of Mirage aircraft by M/s Dassault Aviation, France (OEM) is planned in FY 2023-24 (2 a/c) and FY 24-25 (2 a/c) at Overhaul Division.- On completion of AGS3, entire Mirage fleet will undergo Major Inspection 3 at Overhaul Division.
Transformation of Mirage 2000 B to Mirage 2000 Tl standard on two aircraft in under progress at Overhaul Division with the support of OEM M/s. Dassault Aviation, France.- Post completion of transformation, Overhaul Division will undertake Major Inspection and upgrade.,.
Facility set up for undertaking 100% looms replacement on Jaguar aircraft has been initiated. On readiness of facility, Overhaul Division will undertake 100% looms replacement on Jaguar aircraft inducted for Major Servicing/Upgrade. - As per tentative plan, 100% Loom change is planned is expected to be completed by FY 2036-37.
Conversion of Kiran MK II Aircraft to Unmanned Aerial Vehicle/ Optionally Piloted Vehicle is currently being designed and developed by HAL Research Centre. Overhaul Division will undertake modification involving integration of new systems/modification of existing systems, ground run, flight trails and flight acceptance.- Development of Automatic Digital Flight Control System and Remote Piloting for Fixed Wing Aircraft.
|
|
GENERAL MANAGER
Overhaul Division
Hindustan Aeronautics Limited
P.O. Vimanapura
Bangalore – 560 017
Karnataka State
India
Email: sk[dot]gautam[at]hal-india[dot]co[dot]in
Telephone : +91 -080 – 22313639
Fax : +91 -080 – 22311181
Customer Services :
Telephone / Fax : +91 -080 – 22318225.



