What was found
LEFT KEEL LOWER FLANGE UPPER SURFACE CORRODED AT BS 999. REPAIRED LOWER INBOARD KEEL FLANGE IAW SRM 53-50-12, REPAIR 1. AIRCRAFT GROUNDED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT KEEL LOWER FLANGE UPPER SURFACE CORRODED AT BS 999. REPAIRED LOWER INBOARD KEEL FLANGE IAW SRM 53-50-12, REPAIR 1. AIRCRAFT GROUNDED.