scope:

Description of Driving Event:

The STS-88/2A mission had around 150 Chits written requesting information from the Mission Evaluation Room (MER), Flight Control Team, or Moscow. The ISS MER Chits did not require Safety concurrence prior to closure by the MER Manager. Many Chits had safety implications; approval without Safety concurrence might have negatively affected Hazard Controls, Flight Rules, or Critical Items. Users of Chits may not be aware of existence of Safety concurrence or disapproval of Chits.