# SDR SWAA2022100552537

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2022
- Submitted: October 5, 2022
- Operation: Air carrier
- Aircraft: [N8651A](https://openairdocs.org/aircraft/N8651A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36920
- Aircraft time: 27,317 hours, 12,717 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support Plate
- Part number: 143A7501231
- Condition: Corroded
- Location: Fwd Cargo Bay
- 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/SWAA2022100552537

## Discrepancy

FWD CARGO BAY L/H FLOOR SIDEWALL SUPPORT PLATE HAS MULTIPLE AREAS OF CORROSION BS500 TO BS500I LBL24 WL156 / [01] EVALUATED CORROSION AT ALL LOCATIONS ON FLOOR TO SIDEWALL SUPPORT FOUND DEEPEST LOCATION TO BE AT BS 500D+10 LBL 24 WL 156; FOUND 0.015 REMOVED FROM ORIG 0.040 IN NUMEROUS 1'X1' AREAS; FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 2678 DUE 04/2023;[02] VERIFIED CORRECTIVE ACTIONS STEP 1 AND MEASUREMENTS TABLE.;[03] REMOVED L/H FLOOR TO SIDEWALL SUPPORT DAMAGED SECTION BETWEEN BS 488 AND BS 500I PER SRM 51-10-02 AND SRM 51-40-02-0G-0;[04] APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON REPAIR PARTS PER SRM 51-20-01 AND SOPM 20-41-02;[05] OK TO INSTALL L/H FLOOR TO SIDEWALL SUPPORT SECTION BS 488 TO 500I;[06] OKAY TO INSTALL L/H FLOOR SUPPORT SECTION FROM BS 488 TO BS 500I LBL 24.;[07] INSTALLED L/H FLOOR TO SIDEWALL SUPPORT AT BS 488 TO 500I; SPLICE AT BS 488 AND SPLICE AT 500E+11 PER SRM 51-40-02-0G-0; SRM 53-00-53 REP 5; DWG 143A7500; DWG 143A7501 AND EA NO: 22-153-02790 REV A;[08] VERIFIED CORRECTIVE ACTION ITEM 7.;[09] THE DAMAGE WAS REPAIRED PER 737-800 SRM 53-00-53-2R-5 (REPAIR 5) AND EA 22-153-02790.;[10] VERIFIED CORRECTIVE ACTION #9;[11] TASK COMPLETE

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