National Space Development Agency of Japan (NASDA) postponed the launch
of the H-IIA Launch Vehicle No.1 because of the malfunction of the
pressure- controlling valve for the second stage liquid oxygen tank.
As a result of the cause investigation, the malfunction was due to
particles generated from the filter in the valve.

Today, a new cleanness-assured valve was assembled to the launch
vehicle, and its function was successfully verified.
Therefore, NASDA set the new launch day on August 29 (Wed.), 2001 (JST).
The launch time is between 13:00 and 18:00 JST.

* This information is also in the Latest H-IIA Information