Japan's Defense Ministry officials will allow the new P-1 patrol aircraft to fly again as early as next month.
The Maritime Self-Defense Force grounded P-1 planes after all 4 engines temporarily cut out during a test flight of the aircraft over the Pacific Ocean in May.
Ministry officials say a sudden slowdown in speed lowers fuel intake and leads to unsteady combustion.
They say engineers will modify the software controlling the engines to maintain a steady fuel supply. They plan to resume flights in October after conducting tests on the ground.
The P-1 is Japan's next generation, domestically produced patrol jet.
The first 2 planes were deployed to an MSDF base in March.
