What was found
PIT - ATTCS NO MARGIN, LEFT ENGINE. MAINTENANCE DID A GROUND POWER RUN ON BOTH ENGINES AND COULD NOT DUPLICATE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PIT - ATTCS NO MARGIN, LEFT ENGINE. MAINTENANCE DID A GROUND POWER RUN ON BOTH ENGINES AND COULD NOT DUPLICATE.