# SDR SWAA2021071981789

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2021
- Submitted: July 19, 2021
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 54,253 hours, 32,244 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support Angle
- Condition: Corroded
- Location: Bs 947
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021071981789

## Discrepancy

CORROSION ON AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT AFT CARGO BAY BS947 LBL8 TO RBL19 WL179. ; / [01] REMOVED ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE; BS947 LBL8 TO RBL19; WL179; IAW SRM 51-40-02-0G-0.; [02] EVALUATED CORROSION; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [03] VERIFIED CORROSION DAMAGE FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [04] LOCATED AND DRILLED NEW ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS 947 LBL 8 TO RBL 19 IAW SRM51-40-02-0G-0; SRM 51-40-05-0G-0.; [05] VERIFIED LOCATE AND DRILL OF NEW ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS 947 LBL 8 TO RBL 19 IAW SRM51-40-02-0G-0; SRM 51-40-05-0G-0; [06] OK TO INSTALL AFT BULKHEAD TO FLOOR SUPPORT; [07] VERIFIED OK TO INSTALL AFT BULKHEAD TO FLOOR SUPPORT; [08] INSTALLED ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS947; RBL19; WL179 PER SRM 51-40-02-0G-0 AND DWG 149A8110; DWG 149A8117; [09] ASSIGNED PART TO JOB; [10] VERIFIED THE INSTALLATION OF THE ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS947; RBL19; WL179; [11] VERIFIED TASK IS COMPLETE

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