What was found
L4 DOOR SILL WEB AT STN 1660 EXFOLIATED. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15 FIG 101. REMOVED, FABRICATED, AND INSTALLED NEW SILL WEB (CHANNEL) IAW SRM 51-40-02.
- Difficulty date
- March 15, 2011
- Submitted
- March 16, 2011
- Operation
- Air carrier
- Aircraft
- N521US
- Make and model
- Boeing 757251
- Aircraft serial
- 23209
- Aircraft time
- 77,302 hours, 32,235 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Sill
- Condition
- Corroded
- Location
- Fuselage
- 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.