What was found
CORROSION UPON REMOVAL OF AFT DRAIN MAST, FOUND EXTERNAL SKIN CORROSION. BS 992 TO BS 996 BETWEEN S-24L AND S-25L LBL 25. REPAIR ACCOMPLISHED, PER ATS ER NR 20-03297 REV IR & EA NR 20-153-01791 REV IR DATED 29-SEP.2020.
- Difficulty date
- September 17, 2020
- Submitted
- October 5, 2020
- Operation
- Air carrier
- Aircraft
- N499WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 32481
- Aircraft time
- 54,217 hours, 32,098 cycles
- System (JASC)
- 5330 · Fuselage Main, Plate/Skin
- Part
- Skin
- Condition
- Corroded
- Location
- Bs 992-996
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.