As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL PRESSURE INDICATOR LINE (COPPER) BETWEEN FIREWALL AND INDICATOR WORE THROUGH AND LEAKED DUE TO IMPROPER SECURING OF LINE BY PLASTIC TY-RAP BANDS. PLASIC TY-RAP IS HARDER THAN COPPER .1250 INCH LINE. LINES SHOULD BE SECURED BY PROPER SIZE ADEL CLAMPS.