Air carrier medium large transport altitude deviation excursion from clearance altitude.

Attributes
ACN	190261
Time
Date	199109
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 10300 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other 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 : flight engineer pilot : private pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 9000 flight time type : 2500
ASRS Report	190261
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Operational Deviation Pilot Deviation other

Narrative:

While level at 11000 we were given a clearance, 'slow to 210 KTS and descend to 6000.' at approximately 10300 ft we were given a climb back to 11000 ft with no explanation. A phone call to TRACON on the ground later indicated a communication mixup. We were air carrier X gec and the clearance was meant for air carrier Y aaec. Air carrier Y did not descend, we did. I think we were given their clearance!

Original NASA ASRS Text

Title: ACR MLG ALT DEV EXCURSION FROM CLRNC ALT.

Narrative: WHILE LEVEL AT 11000 WE WERE GIVEN A CLRNC, 'SLOW TO 210 KTS AND DSND TO 6000.' AT APPROX 10300 FT WE WERE GIVEN A CLB BACK TO 11000 FT WITH NO EXPLANATION. A PHONE CALL TO TRACON ON THE GND LATER INDICATED A COM MIXUP. WE WERE ACR X GEC AND THE CLRNC WAS MEANT FOR ACR Y AAEC. ACR Y DID NOT DSND, WE DID. I THINK WE WERE GIVEN THEIR CLRNC!

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.