A B737-500'S NUMBER 2 ENG STALLED ON START WHILE ATTEMPTING TO START NUMBER ONE ENG THAT WAS NOT ROTATING AND DISTRACTING THE CREW. THE NUMBER TWO ENG SUBSEQUENTLY OVER-TEMPED.

Narrative

DURING ENG #2 START ALL WAS NORMAL UNTIL I (CAPT) RESPONDED TO THE FO CALLING STARTER CUTOUT BY SAYING START ENG #1. I TOOK MY ATTN AWAY FROM #2 EGT (I REALLY DO TRY TO NOTE THE PEAK EGT) GAUGE TO NOTE N2 ROTATION ON #1 ENG AT WHICH I DID NOT SEE ANY N2 ROTATION. I HEARD THE FO SAY; 'WE'RE LOSING #2 ENG;' WHILE I WAS QUICKLY SCANNING PACK AND BLEED SWITCHES; ANYTHING TO CAUSE ZERO N2 ROTATION ON #1. THE FO STATED ENG #2 WAS SPOOLING DOWN SO I LOOKED TO ENG #2 INSTS AND NOTED EGT RAPIDLY RISING TOWARD THE TOP OF THE GREEN BAND AND I QUICKLY MOVED THE START LEVER TO CUTOUT AT WHICH TIME THE EGT KEPT CLBING TO PEAK OUT AT APPROX 910 AND IMMEDIATELY STARTED DROPPING. I THEN CALLED FOR QRH ABORTED ENG START CHKLIST WHICH WE THEN ACCOMPLISHED. I TALKED TO THE PAX WHILE THE FO CALLED OPS AND MAINT. WE RETURNED TO THE GATE; I WROTE UP THE EVENT IN THE LOGBOOK; CALLED DISPATCH; AND EXPLAINED TO THE MECH WHAT HAPPENED. WE CHANGED ACFT AND CONTINUED OUR TRIP. BOTH OF US HAVE TRIED TO FIGURE OUT AND I STILL DO NOT UNDERSTAND WHAT CAUSED NO N2 ROTATION ON ENG #1 OR WHAT CAUSED ENG #2 TO SPOOL DOWN. I DO KNOW THAT I COULD HAVE PREVENTED ENG #2 OVER-TEMP BY NOT LETTING MYSELF BE DISTR. I SHOULD HAVE STAYED WITH ENG #2 UNTIL ROLLBACK; THEN TRY TO TAKE CARE OF ENG #1. POSSIBLE PROC IS TO NOT CALL FOR SECOND ENG START UNTIL ROLLBACK ON THE FIRST ENG IS VERIFIED. SUPPLEMENTAL INFO FROM ACN 813445: LOOKING BACK; THE COM ON THE ENG FAILURE COULD HAVE BEEN CLRER; PROMPTING CAPT TO INITIATE THE ABORTED ENG START BEFORE THE RAPID RISE IN EGT. WE ALSO LET THE NO ROTATION ON ENG #1 DISTRACT US FROM THE MORE SERIOUS PROB ON ENG #2.