Maintenance, Repair and Overhaul
Also called: MRO · Topic: Industrial Policy, Public Sector, MSMEs and Disinvestment · NCERT: Beyond NCERT
Meaning
Maintenance, Repair and Overhaul (MRO) is the industry that keeps costly machines working through their service life. It covers ships, aircraft, engines and other platforms. The work runs from routine checks (maintenance) to fixing faults (repair). It also includes taking the main systems apart and rebuilding or replacing them (overhaul). A strong home MRO base means a country does not have to send its ships or planes to foreign yards. Money and jobs stay at home, smaller supplier firms such as MSMEs get work, and local engineers learn skills they can use again. This is why MRO is linked to Atmanirbhar Bharat, the self-reliant India policy, especially in defence.
Example
The Ministry of Defence hired the state-run Cochin Shipyard to refit the Navy frigate INS Betwa. A refit is a scheduled overhaul of a ship's systems. The yard will replace the ship's old steam-based engines with diesel engines, a job called re-powering, and fit a modern weapon suite. More than 50 MSMEs are expected to supply parts and services for the work.
Don't confuse with
- Shipbuilding / original manufacturing: this makes a new ship or aircraft. MRO works on platforms that are already in service, to keep them running and make them last longer.
- Indigenous manufacturing of core parts: an MRO job done in India can still use imported engines or other key parts. Doing the repair work at home does not mean the core technology is Indian.