What was found
UPON COMPLETION OF A FOUR POINT RUN AND CASE PRESSURE CHECK IT WAS NOTED THAT THE NR 3 AND NR 4, CARBON SEALS WERE LEAKING. THIS REQUIRED AND ENGINE CHANGE OF NR 1 ENGINE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UPON COMPLETION OF A FOUR POINT RUN AND CASE PRESSURE CHECK IT WAS NOTED THAT THE NR 3 AND NR 4, CARBON SEALS WERE LEAKING. THIS REQUIRED AND ENGINE CHANGE OF NR 1 ENGINE.