As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT # 1937, SJU-SDQ(AIR TURN BACK TO SJU). BLEED 2 INOP (FAIL) RESET TWICE PER QRH ; FOUND MULTIPLE BLEED LINES LOOSE. REAJUSTED CLAMP LINES IAW AMM 36-11-08. PERFORMED ENGINES RUN. OPS CHECK OKAY. SEE LOG PG. 3188041 ITEM 1 AND 2 FOR R/R OF RH ENG FAN AIR VLV/AMS MOTOR CARD. A/C OKAY TO CONT. IN SVC.