Air carrier X altitude deviation descent through assigned altitude.

Attributes
ACN	289699
Time
Date	199411
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dtw
State Reference	MI
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw tracon : cmh
Operator	common carrier : air carrier
Make Model Name	MD-82
Operating Under FAR Part	Part 121
Navigation In Use	Other 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 : instrument pilot : atp
Experience	flight time last 90 days : 240 flight time total : 19000 flight time type : 5400
ASRS Report	289699
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 7500 flight time type : 180
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X on vectors, 050 degrees off mizar intersection, cleared from 14000 ft to 11000 ft. First officer mistakenly set in 10000 ft in altitude window. When descending through 10800 ft, controller said that the clearance limit was 11000 ft and then immediately cleared the flight to 7000 ft. Captain called TRACON on ground and supervisor on duty said there was no conflict. First officer very high workload including acquiring ATIS and inbound gate contributed. Supplemental information from acn 289696: ATC cleared to 11000 ft and I put 10000 ft in altitude preselect. Captain requested ATC to confirm 10000 ft and transmission was blocked. Again, asked to confirm. ATC advised us as we descended through 10400 ft that 11000 ft was the assigned altitude and, in the same sentence, they cleared us on down to 7000 ft. No conflict with other traffic was mentioned and he did not advise us that it was a problem.

Original NASA ASRS Text

Title: ACR X ALTDEV DSCNT THROUGH ASSIGNED ALT.

Narrative: ACR X ON VECTORS, 050 DEGS OFF MIZAR INTXN, CLRED FROM 14000 FT TO 11000 FT. FO MISTAKENLY SET IN 10000 FT IN ALT WINDOW. WHEN DSNDING THROUGH 10800 FT, CTLR SAID THAT THE CLRNC LIMIT WAS 11000 FT AND THEN IMMEDIATELY CLRED THE FLT TO 7000 FT. CAPT CALLED TRACON ON GND AND SUPVR ON DUTY SAID THERE WAS NO CONFLICT. FO VERY HIGH WORKLOAD INCLUDING ACQUIRING ATIS AND INBOUND GATE CONTRIBUTED. SUPPLEMENTAL INFORMATION FROM ACN 289696: ATC CLRED TO 11000 FT AND I PUT 10000 FT IN ALT PRESELECT. CAPT REQUESTED ATC TO CONFIRM 10000 FT AND XMISSION WAS BLOCKED. AGAIN, ASKED TO CONFIRM. ATC ADVISED US AS WE DSNDED THROUGH 10400 FT THAT 11000 FT WAS THE ASSIGNED ALT AND, IN THE SAME SENTENCE, THEY CLRED US ON DOWN TO 7000 FT. NO CONFLICT WITH OTHER TFC WAS MENTIONED AND HE DID NOT ADVISE US THAT IT WAS A PROB.

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.