MD80 flight crew accidentally set 10000 ft instead of 11000 ft and descended below restr altitude on...

Attributes
ACN	570940
Time
Date	200301
Place
Locale Reference	atc facility : zny.artcc
State Reference	NY
Altitude	msl single value : 11000
Aircraft 1
Controlling Facilities	artcc : zny.artcc
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 : approach
Route In Use	arrival star : korry
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	570940
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : overshoot altitude deviation : crossing restriction not met non adherence : far non adherence : clearance non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During korry 2 arrival approaching brand intersection, we set 11000 ft for the restr. At that same time, we must have bumped the altitude wheel because we lost the 11000 ft arm and 10000 ft became armed. This resulted in our descending below 11000 ft prior to brand. Restr is at or above 11000 ft at brand. We were level at 10000 ft at the mandatory 10000 ft korry restr. No excuses -- just missed it during a busy arrival. We could have brought the FMS into our xchk more often which would have also reinforced our position being outside brand and descending.

Original NASA ASRS Text

Title: MD80 FLC ACCIDENTALLY SET 10000 FT INSTEAD OF 11000 FT AND DSNDED BELOW RESTR ALT ON AN ARR.

Narrative: DURING KORRY 2 ARR APCHING BRAND INTXN, WE SET 11000 FT FOR THE RESTR. AT THAT SAME TIME, WE MUST HAVE BUMPED THE ALT WHEEL BECAUSE WE LOST THE 11000 FT ARM AND 10000 FT BECAME ARMED. THIS RESULTED IN OUR DSNDING BELOW 11000 FT PRIOR TO BRAND. RESTR IS AT OR ABOVE 11000 FT AT BRAND. WE WERE LEVEL AT 10000 FT AT THE MANDATORY 10000 FT KORRY RESTR. NO EXCUSES -- JUST MISSED IT DURING A BUSY ARR. WE COULD HAVE BROUGHT THE FMS INTO OUR XCHK MORE OFTEN WHICH WOULD HAVE ALSO REINFORCED OUR POS BEING OUTSIDE BRAND AND DSNDING.

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.

MD80 flight crew accidentally set 10000 ft instead of 11000 ft and descended below restr altitude on an arrival.