1.   An aviation engineer analyzing the wreckage said he had studied two salvaged portions of those metal bulkheads.

2.   Investigators continued to analyze the wreckage Monday, and were seeking to retrieve fuel samples from the soil, trying to explain why the engines appeared to have failed.

3.   Police analyzed wreckage of the regional RER subway train for clues.

4.   Police analyzed wreckage of the subway train for clues.

5.   It could be several months before the wreckage is fully analyzed.

6.   The bodies were recovered Thursday, and experts are analyzing the wreckage to determine the cause of the crash.

7.   The train was towed to a police laboratory in southern Paris, where investigators were analyzing the wreckage.

8.   But both agencies Thursday declined to say if they had made further progress in analyzing the wreckage.