What was found
L4 DOOR LOWER SILL UPPER SURFACE HAT CHANNEL NR 4 FROM FWD, HAD CORROSION. REMOVED THE HAT CHANNEL AND INSTALLED A NEW HAT CHANNEL IAW SRM 51-40-02.
- Difficulty date
- April 21, 2018
- Submitted
- April 24, 2018
- Operation
- Air carrier
- Aircraft
- N544US
- Make and model
- Boeing 757251
- Aircraft serial
- 26491
- Aircraft time
- 69,549 hours, 22,281 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Channel
- Condition
- Corroded
- 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.