Service difficulty report · Door Sill · Boeing 757231

Difficulty date
December 15, 2025
Submitted
December 16, 2025
Operation
Air carrier
Aircraft
N727TW
Make and model
Boeing 757231
Aircraft serial
30340
Aircraft time
88,886 hours, 21,824 cycles
Part
Door Sill
Condition
Corroded
Location
Zone 100
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.

What was found

LOWER SILL, LOWER CHORD CORRODED IN MULTIPLE AREAS. AFT OF CARGO DOOR CUTOUT. BLENDED AREAS MINIMUM REMAINING THICKNESS 0.153 AND IS OUT OF LIMITS IAW SRM 53-60-15, REPAIRED DAMAGE PER ERA 630682-14. (1352869)