What was found
DURING GROUND AIR START AT GATE, START HUNG AT AND EGT WAS FLASHING AT 432C, QRH WAS COMPLETED, ON ENGINE NR 1. ACFT GROUNDED. R & R NR 1 ENGINE START VALVE REF AMM 80-11-03-000-801-F00 AND 80-11-03-400-801-F00. STARTED NR 1 ENGINE WITH GROUND AIR CART, NORMAL START NOTED, ALL ENGINE PARAMETERS NORMAL, AND NO LEAKS NOTED. THIS CLEARS MEL 80-3B.