Bad weather forced scores of divers to temporarily suspend their hunt for a crashed Indonesian jet's cockpit voice recorder yesterday, as investigators worked to read critical details on a flight data device that had already been salvaged. The two "black boxes" could supply key clues as to why the Sriwijaya Air Boeing 737-500 plunged about 3,000 metres in less than a minute before slamming into the Java Sea soon after take-off on Saturday, taking with it 62 people. Divers just off the coast of Jakarta had hauled the data recorder to the surface Tuesday, with the hunt now focused on finding a voice recorder on the wreckage-littered seabed. So far authorities have been unable to explain why the 26-year-old plane crashed just four minutes after setting off from Jakarta, bound for Pontianak city on Borneo island, a 90-minute flight away.