Should the investigation identify any additional areas where improvements could be made, Foxconn will not hesitate to immediately implement those measures, it added.

While most iPad 2 production takes place at the Foxconn facility in Shenzhen, that plant may not be able to compensate for all the lost output in the second quarter at the Chengdu site, iSuppli said.

The research firm has forecast that 7.4 million iPad 2 units will be shipped into the channel during this period. The Shenzhen factory, with a production capacity of 7.5 million units, may not be able to meet all the production requirements, as it will have to produce 7.8 to 8.1 million units to meet the gap between factory production and the shipment of products into the channel, Rhoda Alexander, an iSuppli analyst said. Not all manufactured units make it through the final inspection, for example, Alexander added.

Gartner analyst Amy Teng however said she did not anticipate a significant impact from the Chengdu blast on iPad shipments. The Chengdu factory had just started making the iPads, and most of the production of iPads is still done in other factories in China, she added.

[With inputs from Michael Kan in Beijing]