As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COMPRESSION TEST REVEALED 71/80 FOR NR 1 CYLINDER AND 25/80 FOR NR 2 CYLINDER. UPON APPLICATION OF LEAK DETECTOR LIQUID, A CRACK WAS FOUND IN NR 1 CYLINDER ADJACENT TO INTAKE PORT BETWEEN 16TH AND 17TH FIN. CRACK EXTENDS FROM EXHAUST VALVE TO SPARK PLUG HOLE IN NR 2 CYLINDER.