OOOI is an acronym for Out, Off, On and In times of an aircraft which indicates the beginning and end of a trip.

Out – Leaving gate or parking position

Off – Takeoff

On – Touchdown

In – Arrival at gate or parking position

This type of data is important to aircraft operators to know the current status of their aircraft. OOOI is acquired differently in commercial aircraft than in general aviation aircraft: ACARS is available for commercial aircraft which delivers OOOI data using sensory data, but in the general aviation market some GPS aircraft tracking

GPS Aircraft Tracking

GPS aircraft tracking are systems installed on aircraft to give position reports over a satellite and/or cellular network. This information is typically accessed from a web-based mapping interface where current and historical information can be viewed...

 units are capable of delivering this information without using sensory data.

What is it used for?

OOOI can be very useful for aircraft operators in several ways. First, some GPS aircraft tracking devices have the ability to send notifications by e-mail upon the OOOI events, therefore notifying an aircraft operator immediately upon leaving the gate, take-off, touchdown and finally the arrival at the gate. These status updates keep the operator informed of expected arrival times and help with scheduling. Second, the reports and tip history generated by GPS aircraft tracking devices acts as proof of flight hours as required by law. Third, since this information is used to calculate many other statistics, the delivery of OOOI data allows for more accurate predictions for costs and maintenance.

Providers of OOOI enabled devices

• ACARS
• Guardian Mobility
• FLYHT