Narrative:

After takeoff, we were notified by company that we still had the tailstand on aircraft. On returning, we did indeed. The checklists were accomplished properly, but the ramper had shown me a tailstand not in use, while the other was still attached.

Google
 

Original NASA ASRS Text

Title: RELYING ON INACCURATE INFO FROM GND PERSONNEL, FLC TAXIES AND TAKES OFF WITH TAILSTAND STILL ATTACHED TO ACFT.

Narrative: AFTER TKOF, WE WERE NOTIFIED BY COMPANY THAT WE STILL HAD THE TAILSTAND ON ACFT. ON RETURNING, WE DID INDEED. THE CHKLISTS WERE ACCOMPLISHED PROPERLY, BUT THE RAMPER HAD SHOWN ME A TAILSTAND NOT IN USE, WHILE THE OTHER WAS STILL ATTACHED.

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.