What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: BLLED LIGHT APPEARED FOR LEFT ENGINE BLLED AIR, DIZZINESS AND POSSIBLE HYPOXIA. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT ABQ. REPLACED LEFT HAND ENGINE PRSOV-PRESSURE REGULATOR AND SHUTOFF VALVE (AALA202510309430) AND FAN AIR MODULATING VALVE (AALA202510307135). PER AMM 36-11-04 AND 36-12-03. REMOVE AND REPLACED OVERHEAD P5-10 PANEL (AALA202510306342), PER AMM 21-51-65. REMOVE AND REPLACED (IASC)-LEFT (AALA202510300050), PER AMM 21-62-22. PERFORMED APU, PACK, AND ENGINE RUN SUCCESSFULLY. OPERATIONAL CHECK GOOD NO FAULTS ALSO PERFORMED PRESSURIZATION TEST REF AMM 05-51-91, OPERATIONAL CHECK GOOD.