If true this would be a four and a half month delay. The newspaper reports that fixes should be done by the end of December with test flights resuming in January. This all, of course, is dependent on FAA approval of the required fixes. Click here for the Les Echos article. The translation is below (by Google Translate):
If no date is yet officially adopted, the first deliveries of Boeing 787 could ultimately involve next summer - perhaps late June or early July. Or with a little over three months late on the last date. This was suggested yesterday some Boeing executives to their counterparts in Air France, alongside the delivery of a B777 to the French company.
For now, the six copies of the 787 tests are still grounded, a month after a fire in a cabinet during a test flight, which resulted in the interruption certification program. But Boeing engineers believe they have identified the source of the problem and possible solutions to them.
The fire was caused by the presence of particles in the closet - and not a forgotten tool as has been mentioned. The short circuit would result in a blackout then the electricity network, despite the security software. Boeing and its partners to the electrical system, Hamilton Sunstrand and Zodiac, have therefore set about rewriting the computer program key.
The aim would be to complete corrections by the end of the year, to resume test flights in January, and lead to certification in June. However, the manufacturer must obtain clearance from the FAA, U.S. Civil Aviation, before resuming its flight tests. If all goes as planned, the consequences of this seventh postponement since the launch of the program would thus without serious consequences on the delivery schedule.
Boeing has 26 Dreamliners on hold on its site in Everett, the colors of All Nippon, Air India and Japan Airlines, which it only needs the engine still installed at the last moment, and the buffer FAA to be delivered. In addition, a second assembly line 787 should start in the summer of 2011 in Charleston, to help make up for lost time.
There is also an article in the Economic Times referencing the same Les Echos article:
Economic Times: Boeing Dreamliner delivery delay to July: Report