FO DID NOT REMOVE TAILSTAND ON A LEAR25 WHILE FUELING WAS IN PROGRESS. CAPT FAILED TO NOTICE TAILSTAND ON HIS ARR. GND CREW WHO DISCONNECTED GPU FAILED TO NOTICE. TKOF WITH TAILSTAND ATTACHED WAS NOTICED BY LCL CTLR.

Narrative

ON INITIAL PREFLT I INTENTIONALLY LEFT THE ACFT TAILSTAND ON FOR FUELING PURPOSES. WHILE CONTINUING TO PERFORM MY JOB DUTIES I NOTICED THAT ONE OF THE INTERIOR OXYGEN ACCESS DOOR PANELS WAS BROKEN. I CALLED ON A MECH TO FIX IT. I LEFT THE ACFT TO RETURN INSIDE. UPON ENTERING THE PLT'S FLT PLANNING ROOM; I SAW THE CAPT SITTING ON THE LAZYBOY RECLINER DRINKING HIS COFFEE AND READING THE NEWSPAPER. I WAS PERTURBED AT WHAT I SAW. I CONTINUED TO FINISH MY JOB DUTIES AND ASSUMED THOSE OF THE CAPT'S AS WELL (WX BRIEFING; FLT PLAN FILING; ETC). IN RETURNING TO THE ACFT FOR PAX LOADING; I FAILED TO REMOVE THE TAILSTAND. MY FAILURE TO REMOVE THE TAILSTAND WAS OVERLOOKED BY THE CAPT; SINCE HE NEGLECTED TO DO AN ACFT WALKAROUND PRIOR TO EMBARKING. THE TAILSTAND WAS OVERLOOKED BY A 3RD PERSON; THE GND PERSONNEL WHO DISCONNECTED THE PLUG FOR THE GPU WHICH IS LOCATED LESS THAN A FOOT AWAY FROM THE TAILSTAND. AFTER TKOF; THE TWR NOTIFIED US THAT THE TAILSTAND WAS ON THE ACFT. I; THE PNF; ACKNOWLEDGED THE XMISSION AND NOTIFIED ATC THAT WE WOULD NEED TO RETURN TO LAND. WE LANDED WITHOUT FURTHER INCIDENT. WE WERE MET ON THE RAMP BY OUR COMPANY CHIEF PLT AND A MECH. THE CAPT GOT OUT TO REMOVE THE TAILSTAND AND CONFIRMATION WAS MADE BY ALL THREE THAT NO STRUCTURAL DAMAGE HAD OCCURRED. THE FLT THEN CONTINUED. IN THE AFTERMATH OF WHAT HAPPENED; IT IS A LESSON LEARNED FIRST HAND AS TO WHAT CAN HAPPEN WHEN PLTS OPERATE INDEPENDENT OF EACH OTHER WITHOUT OPS; CREW COORD/COM AND CRM.