Narrative:

The asde equipment went out during departure rush. In my opinion it seems like the asde is out to maintenance more than normal. At our airport this equipment needs to be reliable due to the obstruction of a new tower and our need to hit departure slots. During this situation it was needed (asde). Also, during times in IFR WX with the tower obstruction the asde is unreliable and is really needed.

Google
 

Original NASA ASRS Text

Title: MISCELLANEOUS -- ASDE OPS UNRELIABLE DUE TO MANY FAILURES.

Narrative: THE ASDE EQUIP WENT OUT DURING DEP RUSH. IN MY OPINION IT SEEMS LIKE THE ASDE IS OUT TO MAINT MORE THAN NORMAL. AT OUR ARPT THIS EQUIP NEEDS TO BE RELIABLE DUE TO THE OBSTRUCTION OF A NEW TWR AND OUR NEED TO HIT DEP SLOTS. DURING THIS SIT IT WAS NEEDED (ASDE). ALSO, DURING TIMES IN IFR WX WITH THE TWR OBSTRUCTION THE ASDE IS UNRELIABLE AND IS REALLY NEEDED.

Data retrieved from NASA's ASRS site as of July 2007 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.