As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BBR/BOS - FLT AI197 - AFTER TAKEOFF, NR 4 ENGINE OIL PRESSURE LIGHT FLICKERED. CHECKED OIL PRESSURE GAUGE, FLUCTUATING RAPIDLY AND QUANTITY NEAR ZERO. SHUT DOWN ENGINE IAW BUFFALO PROCEDURES. FOUND OIL SUPPLY LINE TO GEARBOX UNSECURED, SECURED LINE AND INSPECTED ENGINE IAW JT3D MM 72-00. SYS OPS CHECK GOOD AND NO LEAKS IAW 7200 AND 79-20-00. (X)