Originally Posted by
CO 1E
I thought the term originally applied only to upgrades on the aircraft. In any case, I consider only upgrades on the aircraft to be "battlefield" upgrades. An upgrade at the gate would be a "gate upgrade" or "upgrade at the gate."
I like your interpretation, that was always mine, too. However, googling didn't support this, at least in my search.
The term certainly shouldn't extend to cover the entire period after OLCI; our FAQ should be corrected.