time between overhauls

Also found in: Acronyms.

time between overhauls (TBO)

A time period recommended by manufacturers that an engine, airframe, or any other component of an aircraft can operate under average conditions before it should be overhauled. Any operation beyond this period makes all warranties and guarantees invalid and may even be in violation of certification.
References in periodicals archive ?
The time between overhauls for all types of turbogenerators will be extended from four to six years.
Monitoring and detailed maintenance planning for the vessels is expected to increase the time between overhauls, thereby maximising vessel availability besides saving fuel and reducing emissions.
- Brand new - time between overhauls of not less than 1500 hrs.
- Supply of technical TBO that will allow the at least one repair, during which will be played full time between overhauls.