Narrative:

While descending for arrival into cleveland, we were cleared to descend to 7000 ft with a 160 degree heading. 6000 ft was set in altitude alerter and a 170 degree heading was flown. The 6 and 7 numbers of the instructions were reversed. We had visual contact with a departing aircraft climbing to 6000 ft. The TCASII alerted us to excessive closure rate and we climbed to 7000 ft when the RA alert went off. We had the aircraft in sight at all times. We must pay close attention to heading and altitude numbers when they are close, ie, heading 160 degrees, descend to 15000 ft, etc.

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Original NASA ASRS Text

Title: B737 CREW HAD ALT OVERSHOOT WHICH RESULTED IN A TCASII RA.

Narrative: WHILE DSNDING FOR ARR INTO CLEVELAND, WE WERE CLRED TO DSND TO 7000 FT WITH A 160 DEG HDG. 6000 FT WAS SET IN ALT ALERTER AND A 170 DEG HDG WAS FLOWN. THE 6 AND 7 NUMBERS OF THE INSTRUCTIONS WERE REVERSED. WE HAD VISUAL CONTACT WITH A DEPARTING ACFT CLBING TO 6000 FT. THE TCASII ALERTED US TO EXCESSIVE CLOSURE RATE AND WE CLBED TO 7000 FT WHEN THE RA ALERT WENT OFF. WE HAD THE ACFT IN SIGHT AT ALL TIMES. WE MUST PAY CLOSE ATTN TO HEADING AND ALT NUMBERS WHEN THEY ARE CLOSE, IE, HEADING 160 DEGS, DSND TO 15000 FT, ETC.

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.