- Difficulty date
- January 31, 2023
- Submitted
- March 6, 2023
- Operation
- Air carrier
- Make and model
- Boeing 73776N
- Aircraft serial
- 33379
- Aircraft time
- 62,518 hours, 31,343 cycles
- Part
- Support
- Condition
- Corroded
- Location
- Zn 100 Fus Lower
- 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.
What was found
CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 747+10; BS 747+18; BS 767+3; BS 767+4; BS 767+7; BS 767+13; BS 767+10.<[01] VERIFIED APPLICABILITY SRM 53-60-53-0I-2 IDENTIFICATION 2 AND SRM 53-00-53-1A-2 ALLOWABLE DAMAGE[17] INSTALLED FLOOR TO SIDEWALL SUPPORT LBL21 BS727-847 WL156 IAW SRM 51-40-02-0G-0 AND DWG#146A7500;[18] VERIFIED CORRECTIVE ACTION #17.;[19] VERIFIED MEASUREMENTS.