ACFT INCURSION ONTO ACTIVE RWY.

Narrative

PROB: ACFT CONFLICT ON ACTIVE RWY 2/20 (PDX). DISCOVERY: EXITING AND TURNING R ONTO RWY 2/20 AFTER LNDG ON RWY 28L. CONTRIBUTING FACTORS: PDX ARPT USING 2 INTERSECTING RWYS FOR ARRS AND DEPS. HIGH VOLUME TFC IN AREA. LIMITED SEPARATION OF ARR TFC OPERATING TO BOTH RWYS. NO ALERT OR REQUEST; BY TWR; OF OUR FLT XY TO HOLD SHORT OF OR EXIT SHORT OF RWY 2/20 PRIOR TO LNDG RWY 28L. ATTEMPTED COMS WITH FLT XY DURING OUR LNDG ROLL. NOTE: THERE IS A VERY HIGH NOISE LEVEL IN THE DC-8 COCKPIT DURING ROLLOUT WHILE REVERSING THRUST FOR BRAKING THE ACFT; MAKING RECEPTION AND UNDERSTANDING OF TWR INSTRUCTION POOR; AT BEST; FOR A SHORT PERIOD OF TIME. CORRECTIVE ACTION: STOPPED THROUGH ONTO RWY 2/20; AND TURNED BACK ONTO RWY 28L TO EXIT PAST RWY 2/20 AT TXWY B2. TFC ON FINAL TO RWY 20 EXECUTED A MISSED APCH AND GAR. ACFT LNDG RWY 28L; AFTER FLT XY ALSO EXECUTED A GAR. RESULT OF CONFLICT: THERE WAS NO ACCIDENT OR INJURIES AS A RESULT OF THE CONFLICT. CREW PERCEPTION: AREA TFC VOLUME WAS SUCH THAT OPS ON 2 INTERSECTING RWYS WAS GREATER THAN SHOULD HAVE BEEN ALLOWED. ALSO ATC APPEARS TO BE UNAWARE OF LNDG LENGTH REQUIREMENTS OF HVY TYPE ACFT. ALSO THERE WAS A PERCEIVED ATTEMPT BY TWR TO CORRECT A POSSIBLE TFC CONFLICT AT LAST POSSIBLE MOMENT.