Narrative:

Received TCASII alert 'descend' at FL280, 50 NM north of lyh VOR. TCASII screen showed intruder 900 ft above at 11 O'clock. Descended aircraft 700 ft while KC135 passed overhead. Notified ATC and returned to FL280.

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Original NASA ASRS Text

Title: ALTDEV ACCOUNT TCASII RA TO DSND.

Narrative: RECEIVED TCASII ALERT 'DSND' AT FL280, 50 NM N OF LYH VOR. TCASII SCREEN SHOWED INTRUDER 900 FT ABOVE AT 11 O'CLOCK. DSNDED ACFT 700 FT WHILE KC135 PASSED OVERHEAD. NOTIFIED ATC AND RETURNED TO FL280.

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.