What was found
BS 1076 LBL 9 KEEL BEAM CHORD LWR FLANGE FOUND CORRODED. THE CORROSION WAS REMOVED AND REPROTECTED IAW SRM 51-10-02 AND SRM 51-20-01. CHECKED WITHIN SRM 53-40-12-1A-1 ALLOWABLE DAMAGE 1, FIG 102, LIMITS.
- Difficulty date
- July 31, 2020
- Submitted
- August 4, 2020
- Operation
- Air carrier
- Aircraft
- N498MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 29259
- Aircraft time
- 86,454 hours, 13,625 cycles
- System (JASC)
- 5314 · Fuselage Main, Keel
- Part
- Keelbeam
- Condition
- Corroded
- Location
- Bs 1076
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.