Narrative:

En route to hmv, aircraft cleared direct mhv by ZTL. FMS dumped arrival waypoint after being cleared direct. Center queried our route to clarify the situation. Deviation was minimal but confusing. FMS dependent pilots should verify rtes after every route change and execution.

Google
 

Original NASA ASRS Text

Title: ACR CLRED DIRECT TO HMV. FMC DELETED ARR WAYPOINT AS A RESULT THE ACFT DEVIATED FROM CLRNC RTE.

Narrative: ENRTE TO HMV, ACFT CLRED DIRECT MHV BY ZTL. FMS DUMPED ARR WAYPOINT AFTER BEING CLRED DIRECT. CTR QUERIED OUR RTE TO CLARIFY THE SIT. DEV WAS MINIMAL BUT CONFUSING. FMS DEPENDENT PLTS SHOULD VERIFY RTES AFTER EVERY RTE CHANGE AND EXECUTION.

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.