During the flight lasting two hours and 31 minutes, Boeing test pilots performed airborne systems checks and took the P-8I to a maximum altitude of 41,000 feet prior to landing, Boeing said in a statement here.
In the coming weeks, Boeing will begin mission systems installation and checkout work on the aircraft at a company facility near Boeing Field.
"The P-8I programme is progressing well and we are looking forward to this potent platform joining the Indian Navy as part of its fleet," Rear Admiral D M Sudan, Assistant Chief of Naval Staff (Air), Indian Navy, was quoted as saying.
"The P-8I will provide India with the necessary speed and reliability to satisfy the Indian Navy's maritime reconnaissance and anti-submarine warfare requirements," Boeing India President Dinesh Keskar said.
Based on the Boeing Next-Generation 737 commercial airplane, the P-8I is the Indian Navy variant of the P-8A Poseidon that Boeing is developing for the US Navy, he added.
Leland Wight, Boeing P-8I programme manager, said: "We have transitioned to P-8I production, and remain on track to deliver the first aircraft to the Indian Navy in 2013."
The P-8I is the first of eight long-range maritime reconnaissance and anti-submarine warfare aircraft Boeing is building for India as part of a contract awarded in January 2009. An option for four additional P-8I aircraft was included in the original contract, Boeing said.