From Halopedia, the Halo wiki
In August 2552, the Applebee was on deployment and was docked above Reach. Cortana, testing her intrusion skills, broke into the ONI database and discovered the Applebee, UNSC Circumference, and UNSC Lark were ONI prowlers with innocuous names designed to fool readers into thinking that they were harmless pleasure craft. It is probable that this ship was destroyed during the Fall of Reach by the Covenant, unless it stayed in stealth and escaped.
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