Hmmm... Sounds strangely familiar, doesn't it?
Following the FAA approval, Boeing has begun the repair of five Boeing 787 Dreamliners owned by All Nippon Airways (which owns total 17).
Have they figured out what actually caused the battery fire? No they haven't. If they have, they haven't told us.
What about the miswiring in ANA's plane, where the main battery and the auxiliary battery were connected but they shouldn't have been connected? Have they fixed that one?
From Reuters (4/21/2013):
UPDATE 1-Boeing begins fixing Dreamliners, starts on five ANA 787s
* Some 787s should be ready to fly again in about a week
* ANA plans 100 to 200 round trip test flights in May
* The grounding has cost Boeing an estimated $600 million
TOKYO, April 22 (Reuters) - Boeing Co on Monday began installing reinforced lithium ion batteries on five grounded 787 jets owned by launch customer All Nippon Airways, starting a process that should make the first commercial Dreamliners ready to fly again in about a week.
Teams of Boeing engineers are working on the ANA jets at four airports in Japan, including Tokyo's Haneda and Narita hubs, Ryosei Nomura, a spokesman for the carrier said.
The Dreamliners have been parked since regulators in the United States and elsewhere ordered all 50 planes out of the skies in mid-January after batteries on two of them overheated.
ANA is the world's biggest operator of the carbon-composite aircraft with 17 of the planes. After ANA, the biggest 787 operator is local rival Japan Airlines Co with seven jets, followed by United Continental Holdings Inc's United Airlines and Air India with six each.
ANA plans about 100 to 200 round trip test flights in May of its repaired aircraft before carrying passengers again from June, sources knowledgeable about ANA's operations told Reuters last week. The flights will check the safety of the aircraft, and allow ANA's 180 Dreamliner pilots to get accustomed to flying it again and renew their licenses after more than a three-month break.
ANA has not said how much the 787's grounding has cost it to date, though it has said it lost about $900,000 in revenue per plane in the last two weeks of January. The grounding has cost Boeing an estimated $600 million.
The Federal Aviation Administration (FAA) in the U.S. on Friday approved a Boeing plan to encase the 787s lithium ion batteries in steel box, install new battery charges, and add a duct to vent gases directly outside the aircraft that could cause overheating.
Investigators in the United States and Japan have yet to unravel what caused a 787 battery onboard an ANA jet in Japan and one on another JAL Dreamliner parked at Boston's Logan Airport to overheat.