Altitude deviation, overshoot.

Attributes
ACN	93231
Time
Date	198808
Day	Thu
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : cvg
State Reference	OH
Altitude	msl bound lower : 14000 msl bound upper : 14500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zid tower : lga
Operator	common carrier : air taxi
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4300 flight time type : 1000
ASRS Report	93231
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

On departure from cvg we were told to maintain 12000'. Passing 8000' we were told to contact center 127.0. When I contacted center we were cleared to 17000' and upon leaving 12000', 175 degrees direct tys. As we were passing 14500' center told us to level 15000' and stated that he had told us to maintain 14000' previously and had received an acknowledgement. We never received any such clearance. I remember center talking to another aircraft about traffic in the 15000' area. Possibly the climb restriction was given to the wrong aircraft? 17000' was the clearance and was heard by both crew members and a jumpseat rider wearing a headset and was inserted in the altitude alerter. Possible fix: new transponders where center can send written clearance to aircraft--mode south?

Original NASA ASRS Text

Title: ALT DEVIATION, OVERSHOOT.

Narrative: ON DEP FROM CVG WE WERE TOLD TO MAINTAIN 12000'. PASSING 8000' WE WERE TOLD TO CONTACT CENTER 127.0. WHEN I CONTACTED CENTER WE WERE CLRED TO 17000' AND UPON LEAVING 12000', 175 DEGS DIRECT TYS. AS WE WERE PASSING 14500' CENTER TOLD US TO LEVEL 15000' AND STATED THAT HE HAD TOLD US TO MAINTAIN 14000' PREVIOUSLY AND HAD RECEIVED AN ACKNOWLEDGEMENT. WE NEVER RECEIVED ANY SUCH CLRNC. I REMEMBER CENTER TALKING TO ANOTHER ACFT ABOUT TFC IN THE 15000' AREA. POSSIBLY THE CLB RESTRICTION WAS GIVEN TO THE WRONG ACFT? 17000' WAS THE CLRNC AND WAS HEARD BY BOTH CREW MEMBERS AND A JUMPSEAT RIDER WEARING A HEADSET AND WAS INSERTED IN THE ALT ALERTER. POSSIBLE FIX: NEW TRANSPONDERS WHERE CENTER CAN SEND WRITTEN CLRNC TO ACFT--MODE S?

Data retrieved from NASA's ASRS site as of August 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.