# SDR SWAA2020111026495

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2020
- Submitted: November 10, 2020
- Operation: Air carrier
- Aircraft: [N8656B](https://openairdocs.org/aircraft/N8656B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42530
- Aircraft time: 20,775 hours, 9,097 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 143A7501231
- Condition: Corroded
- Location: Fwd Cargo
- 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/SWAA2020111026495

## Discrepancy

FWD PIT STA 440 TO STA 500I LT FLOOR SUPPORT Z ANGLE UPPER SURFACE CORRODED AT LBL 24 AND W/L 157.  REMOVED CORROSION ON FWD PIT STA 440 TO 500I LT FLOOR SUPPORT Z-ANGLE LBL 24, IAW B737 SRM 51-10-02-0G-0 ITEM 15.  ORIGINAL 'T' .040, REMAINING .028, LOSS .012' DEEPEST AREA.  FOUND TO BE OUT OF LIMITS, IAW B737 SRM 53-00-53-1A-2 FIG 103.  STA 500B TO 440 FOUND WITHIN LIMITS.  CUT OUT DAMAGE SECTION AT BETWEEN STA 500C-500B AND REMOVED, IAW B737 SRM 53-00-53-2R-5 REPAIR 5.  FABRICATED REPAIR Z-ANGLE AND INSTALLED AT STA 500I TO 500C LBL 24, IAW B737 SRM 53-00-53-2R-5 REPAIR 5 P/N 143A7501-231.

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