As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
During an Mck in ATL, Corrosion was found in the left and right upper beaver tails. The Beaver tails were removed to accomplish corrosion removal. After the beaver tail removal it was noted that 11 fasteners common to the pylon spar were elongated. Repaired per EA 99-181347.