The chairman of Northrop Corp. said Wednesday the aerospace firm is starting to rectify scheduling problems dogging its MX missile program, but he refused to specifically discuss similar problems reported to be plaguing the top-secret Stealth bomber.

Referring to delays that have affected production of the MX missile in its electronics division, Northrop chairman and chief executive officer Thomas Jones told shareholders:"We have learned from those events, and we have put the people and the mechanisms in place to try to make sure they won't recur there or elsewhere in the corporation."

Northrop also reportedly has been plagued by production and scheduling problems on the Stealth and was forced to take about $214 million in Stealth-related write-offs last year.