Under the Next-Generation Range Support Aircraft (NGRSA) contract, L-3 will migrate existing systems from three P-3A-based NP-3D aircraft to three newer P-3C airframes.

• 根据下一代射程支撑飞机（NGRSA）合同，L-3公司将把三架基于P-3A的NP-3D飞机现存系统移植到三架新型P-3C机身。