Flight crew of an MD80 overshot assigned altitude on descent and was noticed by the non flying captain that their altimeters had not been reset when previously climbing through FL180.

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Attributes
ACN	427330
Time
Date	199902
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : jhw
State Reference	NY
Altitude	msl bound lower : 28500 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Flight Phase	descent other
Route In Use	enroute airway : zny
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 250 flight time total : 23000 flight time type : 10000
ASRS Report	427330
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : flight engineer pilot : instrument pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 1500
ASRS Report	427020
Events
Anomaly	altitude deviation : overshoot
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Consequence	Other
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

Requested descent from FL330 to FL290 due to light chop. I noticed on my altimeter that we were passing through FL289 and descending still. I noticed the first officer's altimeter was set at 30.31, not 29.92 as required. When he reset his altimeter, we were 500 ft low, and immediately corrected to FL290. Problem was caused by not xchking altimeters passing through FL180 -- both of us being complacent.

Original NASA ASRS Text

Title: FLC OF AN MD80 OVERSHOT ASSIGNED ALT ON DSCNT AND WAS NOTICED BY THE NON FLYING CAPT THAT THEIR ALTIMETERS HAD NOT BEEN RESET WHEN PREVIOUSLY CLBING THROUGH FL180.

Narrative: REQUESTED DSCNT FROM FL330 TO FL290 DUE TO LIGHT CHOP. I NOTICED ON MY ALTIMETER THAT WE WERE PASSING THROUGH FL289 AND DSNDING STILL. I NOTICED THE FO'S ALTIMETER WAS SET AT 30.31, NOT 29.92 AS REQUIRED. WHEN HE RESET HIS ALTIMETER, WE WERE 500 FT LOW, AND IMMEDIATELY CORRECTED TO FL290. PROB WAS CAUSED BY NOT XCHKING ALTIMETERS PASSING THROUGH FL180 -- BOTH OF US BEING COMPLACENT.

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.