Even as Amtrak continued repairs on those trains and 15 other locomotives in which defects were found, officials with the railway reported few cancellations and delays today.
The city council said on Friday that nine of the 17 schools shut suddenly after potentially lethal building defects were found will remain closed for nearly four more months.
NTT DoCoMo, Japan's biggest mobile-phone company, said defects were found in 100,000 handsets from the Matsushita Communication Industrial Company, the latest in a string of glitches to affect Japanese handset makers.
Pupils at Oxgangs primary, where the collapse of a substantial brick wall during a gale in January sparked off the crisis, will return to classrooms at another site on Wednesday, as will children at St Peter's primary, where similar defects were found, and two other primaries.
And no extended defects were found in the whole tooth.
No defects were found after moulding of 500 components.
Some inclusions and defects were found in TiB2 grains.
Focal chondral or osteochondral defects were found in 19% of the patients.
The defects were found in the films, through which the corrosive water could reach the substrate.
In the case of the micrometre sized specimens no defects were found on the fracture surfaces.
