Narrative:

A cherokee called ready for departure, runway 32R. He was told to taxi into position and hold, awaiting spacing on runway for aircraft that had also just departed prior, same runway. Two additional aircraft called inbound for landing instructions. They were given instructions and when I turned to clear the cherokee for departure, a cessna was overflying him while in position. The cessna was cleared to land previously. The cessna landed without incident and the cherokee was cleared for departure. Contributing factors: 1) the traffic on downwind was cleared to land first, the cherokee was told to taxi into position and hold second. The cherokee was not given traffic on downwind and the cessna was not issued traffic in position. 2) the pilots of both aircraft were notified afterwards regarding the situation. The cessna stated that he saw the cherokee in position but chose to overfly him on landing.

Google
 

Original NASA ASRS Text

Title: CESSNA ACFT AT CCR LANDED OVER THE TOP OF A PA28 THAT HAD BEEN TAXIED INTO POS AND HOLD FOR TFC DEPARTING AHEAD.

Narrative: A CHEROKEE CALLED READY FOR DEP, RWY 32R. HE WAS TOLD TO TAXI INTO POS AND HOLD, AWAITING SPACING ON RWY FOR ACFT THAT HAD ALSO JUST DEPARTED PRIOR, SAME RWY. TWO ADDITIONAL ACFT CALLED INBOUND FOR LNDG INSTRUCTIONS. THEY WERE GIVEN INSTRUCTIONS AND WHEN I TURNED TO CLR THE CHEROKEE FOR DEP, A CESSNA WAS OVERFLYING HIM WHILE IN POS. THE CESSNA WAS CLRED TO LAND PREVIOUSLY. THE CESSNA LANDED WITHOUT INCIDENT AND THE CHEROKEE WAS CLRED FOR DEP. CONTRIBUTING FACTORS: 1) THE TFC ON DOWNWIND WAS CLRED TO LAND FIRST, THE CHEROKEE WAS TOLD TO TAXI INTO POS AND HOLD SECOND. THE CHEROKEE WAS NOT GIVEN TFC ON DOWNWIND AND THE CESSNA WAS NOT ISSUED TFC IN POS. 2) THE PLTS OF BOTH ACFT WERE NOTIFIED AFTERWARDS REGARDING THE SIT. THE CESSNA STATED THAT HE SAW THE CHEROKEE IN POS BUT CHOSE TO OVERFLY HIM ON LNDG.

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.