What was found
***CORROSION*** ON SUBTHRESHOLD WEB AT FWD CARGO BAY BS440 - BS493 RBL28 WL157. / REMOVED AND REPLACED SUBTHRESHOLD WEB AT FCB BS 440 - BS 493 RBL 28 WL 157 PER BOEING DWG 143A8330; SRM 51-40-02-0G-0; SRM 51-40-05-0G-0
- Difficulty date
- March 19, 2021
- Submitted
- April 22, 2021
- Operation
- Air carrier
- Aircraft
- N551WN
- Make and model
- Boeing 73776Q
- Aircraft serial
- 30280
- Aircraft time
- 60,799 hours, 37,574 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Web
- Condition
- Corroded
- Location
- Bs 440-493
- 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.