AAR Government Services Inc., Wood Dale, Illinois, is awarded an $87,376,804 firm-fixed-price, time-and-materials modification (P00021) to a previously awarded indefinite-delivery/indefinite-quantity contract (N0001918D0111). This modification exercises an option to provide P-8A Poseidon aircraft depot scheduled and unscheduled maintenance, depot in-service repair/planner and estimator requirements, technical directive incorporation, airframe modifications, aircraft on ground support, and removal and replacement of engines in support of the Navy, the government of Australia, and Foreign Military Sales customers. Work will be performed in Indianapolis, Indiana, and is expected to be completed in October 2024. No funds are being obligated at time of award; funds will be obligated on individual orders as they are issued. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.