Narrative:

During descent the first officer was noticing his attitude director indicator (ADI) showing an incorrect attitude. The captain looked over at the first officer's ADI to see its indication. The captain saw his altitude at 9800 ft MSL when he started to level off. Altitude went to 9600 ft before an ascent to 10000 ft occurred. Air crew members must always fly the airplane first. During descent you must keep a good vigilance on aircraft attitude. Distrs in the cockpit ie, attitude information, must be trouble-shot by one crew member. The other crew member must always fly the aircraft.

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Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT IN DSCNT.

Narrative: DURING DSCNT THE FO WAS NOTICING HIS ATTITUDE DIRECTOR INDICATOR (ADI) SHOWING AN INCORRECT ATTITUDE. THE CAPT LOOKED OVER AT THE FO'S ADI TO SEE ITS INDICATION. THE CAPT SAW HIS ALT AT 9800 FT MSL WHEN HE STARTED TO LEVEL OFF. ALT WENT TO 9600 FT BEFORE AN ASCENT TO 10000 FT OCCURRED. AIR CREW MEMBERS MUST ALWAYS FLY THE AIRPLANE FIRST. DURING DSCNT YOU MUST KEEP A GOOD VIGILANCE ON ACFT ATTITUDE. DISTRS IN THE COCKPIT IE, ATTITUDE INFO, MUST BE TROUBLE-SHOT BY ONE CREW MEMBER. THE OTHER CREW MEMBER MUST ALWAYS FLY THE ACFT.

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.