Altitude deviation altitude overshot. Flight crew misset their altimeters.

Attributes
ACN	298790
Time
Date	199503
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pdx
State Reference	OR
Altitude	msl bound lower : 12000 msl bound upper : 13000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse tower : sdf
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	arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	298790
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	298789
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Descending into pdx, over bonvl, both pilots set altimeters to 30.16 when qnh was 29.16. This caused us to level at 12000 ft MSL when we were cleared to 13000 ft MSL. We corrected the altimeter, notified ATC and climbed back to 13000 ft. ATC said there was no traffic conflict and did not appear upset.

Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT. FLC MISSET THEIR ALTIMETERS.

Narrative: DSNDING INTO PDX, OVER BONVL, BOTH PLTS SET ALTIMETERS TO 30.16 WHEN QNH WAS 29.16. THIS CAUSED US TO LEVEL AT 12000 FT MSL WHEN WE WERE CLRED TO 13000 FT MSL. WE CORRECTED THE ALTIMETER, NOTIFIED ATC AND CLBED BACK TO 13000 FT. ATC SAID THERE WAS NO TFC CONFLICT AND DID NOT APPEAR UPSET.

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.