Narrative:

During final approach to runway 24 at ack at approximately 500 ft AGL a cessna 414 flew over our approach path in a turning descent toward us. The TCAS showed that he was 300 ft above our current altitude. He was on downwind to runway 30. We landed runway 24 and cleared the runway at taxiway D and were instructed to turn right on east and enter the ramp at C. The 414 crossed runway 24 at a high rate of speed. He was instructed to hold short of taxiway east on taxiway C. He was unable to stop short of taxiway east and turned right onto east and continued to taxi to the ramp. We had to apply our brakes briskly as to not create a conflict with the 414. We continued to the ramp once the 414 was clear.

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Original NASA ASRS Text

Title: A pilot at ACK reported that on his approach to Runway 24 a C414 made a turning descending approach to Runway 30 passing about 300' over his aircraft and then after landing crossed his taxiway after being told to hold short.

Narrative: During final approach to Runway 24 at ACK at approximately 500 ft AGL a Cessna 414 flew over our approach path in a turning descent toward us. The TCAS showed that he was 300 ft above our current altitude. He was on downwind to Runway 30. We landed Runway 24 and cleared the runway at Taxiway D and were instructed to turn right on E and enter the ramp at C. The 414 crossed Runway 24 at a high rate of speed. He was instructed to hold short of Taxiway E on Taxiway C. He was unable to stop short of Taxiway E and turned right onto E and continued to taxi to the ramp. We had to apply our brakes briskly as to not create a conflict with the 414. We continued to the ramp once the 414 was clear.

Data retrieved from NASA's ASRS site as of April 2012 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.