What was found
Q4 CHECK - LEVEL 2 EXFOLIATION CORROSION ON AFT CARGO LOWER SILL THRESHOLD WEB BETWEEN BS 807 TO BS 827+10 INCHES, RBL 27.5. REPLACED AFT CARGO LOWER SILL THRESHOLD WEB IAW B737 SRM 53-60-15 FIG 101 DETAIL L VIIL.
- Difficulty date
- June 2, 2011
- Submitted
- July 12, 2011
- Operation
- Air carrier
- Aircraft
- N418US
- Make and model
- Boeing 737401
- Aircraft serial
- 23985
- Aircraft time
- 60,443 hours, 40,460 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Threshold
- Part number
- 6547957U3
- 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.