What was found
DURING A HEAVY CHECK, THE RT HORIZONTAL STABILIZER L/E NR 4 RIB WAS FOUND CRACKED. MAINTENANCE TRIMMED OUT THE CRACK, FABRICATED A FILLER AND DOUBLER, PERFORMED NDT AND INSTALLED IAW ETD 2015-170-050793.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING A HEAVY CHECK, THE RT HORIZONTAL STABILIZER L/E NR 4 RIB WAS FOUND CRACKED. MAINTENANCE TRIMMED OUT THE CRACK, FABRICATED A FILLER AND DOUBLER, PERFORMED NDT AND INSTALLED IAW ETD 2015-170-050793.