Narrative:

We were cleared to land at ZZZ. Approximately 1 second before main wheel touchdown; ZZZ tower issued an urgent and immediate go around instruction. We immediately began a go around (main gear had touched down) and were airborne prior to intersection of runways X and Y. At intersection of runway X and taxiway; we saw an aircraft partially extending onto runway X. After the missed approach and subsequent landing; I phoned the tower and found out that the other aircraft had missed a turn and inadvertently crossed onto runway X without clearance. Supplemental information from acn 745710: at 30 ft I pulled the thrust levers to idle; to allow the aircraft to settle and I began to flare. At approximately 1 second prior to main gear touch; the tower controller in a very loud and urgent tone of voice said; 'air carrier X go around!' or something like that. After hearing that; I immediately pressed the GA switches and assisted the thrust levers to the GA power position. At that point the main gear touched the runway. I maintained the nose in an up attitude and we almost instantly were airborne again. I estimate we were 25-30 ft AGL when we passed the aircraft on the taxiway.

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Original NASA ASRS Text

Title: AN ACR PILOT REPORTS A TWR COMMANDED GAR ON VERY SHORT FINAL AFTER ANOTHER ACR ACFT FAILED TO CLR THE ACTIVE RWY.

Narrative: WE WERE CLRED TO LAND AT ZZZ. APPROX 1 SECOND BEFORE MAIN WHEEL TOUCHDOWN; ZZZ TWR ISSUED AN URGENT AND IMMEDIATE GAR INSTRUCTION. WE IMMEDIATELY BEGAN A GAR (MAIN GEAR HAD TOUCHED DOWN) AND WERE AIRBORNE PRIOR TO INTXN OF RWYS X AND Y. AT INTXN OF RWY X AND TXWY; WE SAW AN ACFT PARTIALLY EXTENDING ONTO RWY X. AFTER THE MISSED APCH AND SUBSEQUENT LNDG; I PHONED THE TWR AND FOUND OUT THAT THE OTHER ACFT HAD MISSED A TURN AND INADVERTENTLY CROSSED ONTO RWY X WITHOUT CLRNC. SUPPLEMENTAL INFO FROM ACN 745710: AT 30 FT I PULLED THE THRUST LEVERS TO IDLE; TO ALLOW THE ACFT TO SETTLE AND I BEGAN TO FLARE. AT APPROX 1 SECOND PRIOR TO MAIN GEAR TOUCH; THE TWR CTLR IN A VERY LOUD AND URGENT TONE OF VOICE SAID; 'ACR X GAR!' OR SOMETHING LIKE THAT. AFTER HEARING THAT; I IMMEDIATELY PRESSED THE GA SWITCHES AND ASSISTED THE THRUST LEVERS TO THE GA PWR POS. AT THAT POINT THE MAIN GEAR TOUCHED THE RWY. I MAINTAINED THE NOSE IN AN UP ATTITUDE AND WE ALMOST INSTANTLY WERE AIRBORNE AGAIN. I ESTIMATE WE WERE 25-30 FT AGL WHEN WE PASSED THE ACFT ON THE TXWY.

Data retrieved from NASA's ASRS site as of January 2009 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.