Altitude deviation altitude overshot during descent.

Attributes
ACN	296471
Time
Date	199502
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	msl bound lower : 6700 msl bound upper : 7000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	296471
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	296470
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On downwind runway 14R ord, descending to 7000 ft. First officer flying captain doing landing PA. Flight may or may not have been given clearance below 7000 ft. Altitude window was not reset below 7000 ft. Descending through 6800 ft, first officer questioned clearance. At same time approach cleared flight to 4000 ft after landing discussion could not determine if aircraft failure to level was an autoplt problem or a failure to arm altitude. When first officer questioned clearance at 6800 ft 7000 ft was armed in the window but autoplt had already been disconnected and we did not know if that action may have armed the altitude. No comments from ATC. Supplemental information from acn 296470: disengaged autoplt and began leveloff while confirming cleared altitude with captain who was giving prepare for landing PA.

Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT DURING DSCNT.

Narrative: ON DOWNWIND RWY 14R ORD, DSNDING TO 7000 FT. FO FLYING CAPT DOING LNDG PA. FLT MAY OR MAY NOT HAVE BEEN GIVEN CLRNC BELOW 7000 FT. ALT WINDOW WAS NOT RESET BELOW 7000 FT. DSNDING THROUGH 6800 FT, FO QUESTIONED CLRNC. AT SAME TIME APCH CLRED FLT TO 4000 FT AFTER LNDG DISCUSSION COULD NOT DETERMINE IF ACFT FAILURE TO LEVEL WAS AN AUTOPLT PROB OR A FAILURE TO ARM ALT. WHEN FO QUESTIONED CLRNC AT 6800 FT 7000 FT WAS ARMED IN THE WINDOW BUT AUTOPLT HAD ALREADY BEEN DISCONNECTED AND WE DID NOT KNOW IF THAT ACTION MAY HAVE ARMED THE ALT. NO COMMENTS FROM ATC. SUPPLEMENTAL INFO FROM ACN 296470: DISENGAGED AUTOPLT AND BEGAN LEVELOFF WHILE CONFIRMING CLRED ALT WITH CAPT WHO WAS GIVING PREPARE FOR LNDG PA.

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.