What was found
FLT 1054 PBI-PBI. AFTER ENG 1 START - APU DEFERRED - AS SOON AS PACK 1 ON - EXTREMLY STRONG ODOR BURNING CRAYONS. EYES/ THROAT EFFECTED - PACK 1 IFF - SMELL DISAPATED NOT GONE."ACCOMPLISHED ECS DECON LEVEL ON L/P 4598796-1. REMOVED AND REPLACED ENG # 1 LP BLIND CAP ON L/P 4598797-2. R/R ENG # 2 LP BLIND CAP ON L/P 4598798-1. ALSO NOTED CRAYON SMELL WITH PACKS OFF ( NO BLEED SOURCE). T/S DOWN TO RECIRC FAN 14HG. R/R 14HG IAW AMM 21-21-51. OPS AND LEAK CHK OK. NO FURTHER DEFECTS/ODOR NOTED. A/C OK TO CONT."