# SDR SWAA2021122251087

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2021
- Submitted: December 22, 2021
- Operation: Air carrier
- Aircraft: [N8673F](https://openairdocs.org/aircraft/N8673F), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36937
- Aircraft time: 20,472 hours, 9,411 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Attach Angle
- Condition: Corroded
- Location: Fuselage
- Stage of operation: UK
- 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/SWAA2021122251087

## Discrepancy

A-061 DOT 020 FWD CARGO PIT CORROSION ON FLOOR SUPPORT ATTACH ANGLE STA 500I RBL 23 TO LBL 23 W/L 155 ; / [01] REMOVED CORROSIONFROM AFT BULKHEAD LOWER SUPPORT RAIL AT BS 500I. ORIGINAL T= .071' LOSS OF .027' REMAINING .044' FOUND TO BE OUT OF LIMITS IAW SRM53-30-08-1A-1 FIG. 103 DETAIL C. TOOLING # 29271 CAL DUE 09APR22; [02] REMOVED AFT BULKHEAD SUPPORT RAIL AT BS 500I LBL 22- RBL22 IAW SRM 51-40-02-0G-0.; [03] VERIFIED STEP 1 AND 2; [04] FLOOR SUPPORT VERIFICATION P/N 143A9485-35 IAW IPC 53-11-01-42 ATAG WN8761; [05] VERIFIED STEP 4; [06] VERIFIED STEP 4 AND 5; [07] FABRICATED RAIL IAW SRM 51-40-05; [08] VERIFIED STEP 7; [09] VERIFIED STEPS 7-8.<BR>OK TO INSTALL.; [10] INSTALLED RAIL IAW SRM 51-40-02 STEP COMPLETE; [11] VERIFIED STEP 10; [12] VERIFIED STEPS 10-11<BR>AUDITED.

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