What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSIONN ON AFT CABIN FLOOR SHEAR WEB AT BS 990 AND RBL 34. REPAIRED FLOOR SHEAR WEB PER SRM 51-70-13-1R-4 AND EA 303553. **SUPPLEMENTAL REPORT TO CHANGE SECTION 7 CORROSION LEVEL TO REFLECT 2**
- Difficulty date
- February 13, 2020
- Submitted
- March 26, 2020
- Operation
- Air carrier
- Aircraft
- N907AN
- Make and model
- Boeing 737823
- Aircraft serial
- 29509
- Aircraft time
- 61,139 hours, 24,784 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Shear Web
- Part number
- 147A57123
- 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.