Narrative:

Training in progress; I was allowing the cpc-it to control the situation. First aircraft had landed on the runway and was rolling out. Second aircraft on short final to same runway; very close behind. Amass alerted to send second aircraft around. Recommendation; be more aggressive with cpc-it about making a decision earlier.

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Original NASA ASRS Text

Title: Tower Controller providing OJT described a AMASS alert requiring the issuance of a go-around. The reporter acknowledged that instructor intervention was late.

Narrative: Training in progress; I was allowing the CPC-IT to control the situation. First aircraft had landed on the runway and was rolling out. Second aircraft on short final to same runway; very close behind. AMASS alerted to send second aircraft around. Recommendation; be more aggressive with CPC-IT about making a decision earlier.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.