What was found
LT PACK LIGHT ILLUMINATED UPON RECALL AFTER ENGINE START. ACFT GROUNDED. ATTEMPTED TO DO BITE ON NR 1 IAW FIM 21-62, TASK 301 NR 1 PTC DID NOT OPERATE. FOUND RAM AIR MOD LT C/B P6-4 OUT, C/B WOULD NOT RESET. REF AMM 20-60-01, NO DEFECTS NOTED ON C/B. REMOVED CONNECTOR REF WDM 21-51-14. C/B RESET, RECONNECTED D966 C/B POPPED. RE-ACCOMPLISHED PTC BITE AFTER INSTALL OF NEW ACTUATOR. BITE TEST GOOD FIM 21-62, TASK 801. REPLACED LT RAM AIR ACT REF AMM REF 21-51-21-000-801. OPS CHECK NORMAL. MEL 21-32B CLEARED.