What was found
CORROSION ON THE LT WING INTER SPAR LWR SKIN LOWER SURFACE AROUND SURGE TANK SUMP DRAIN. REPAIR DAMAGED AREA IAW EI T2018A57M-4720 REV1. OPS CHECK GOOD.
- Difficulty date
- September 26, 2018
- Submitted
- October 1, 2018
- Operation
- Air carrier
- Aircraft
- N780BA
- Make and model
- Boeing 747409
- Aircraft serial
- 24310
- Aircraft time
- 83,219 hours, 15,893 cycles
- System (JASC)
- 5730 · Wing, Plate/Skin
- Part
- Skin
- Condition
- Corroded
- Location
- Lt Wing
- 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.