# SDR SWAA2022050996558

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2022
- Submitted: May 9, 2022
- Operation: Air carrier
- Aircraft: [N927WN](https://openairdocs.org/aircraft/N927WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36889
- Aircraft time: 45,530 hours, 27,478 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- 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/SWAA2022050996558

## Discrepancy

CORROSION ON FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 23 BS 500A+14; BS 500B+7; BS 500B+10; BS 500C+13. / [01] VERIFIED SRM 53-00-53-1A-2 IS APPLICAPLE FOR REPAIR.<BR><BR>REMOVED CORROSION AT 4 LOCATION ON FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT RBL 23 BS 500A+14 - BS 500C+13 PER SRM 51-10-02-0G-0. 1ST AREA 500A+14 MEASURES: L=0.600; W=0.400; Y=0.006. 2ND. BS 500B+7: L=0.650; W=0.400; Y=0.013. 3RD. BS 500B+10: L=0.550; W=450; Y=0.008. 4TH. BS 500C: L=0.800; W=0.450; Y=0.010. ORIGINAL PART THICKNESS PER SRM 53-30-53-01-2 IS 0.040' WITH A MAX DAMAGE REMOVAL AT 10% OF MATERIAL THICKNESS THEREFORE ALL BLEND AREAS ARE OUT OF LIMITS PER SRM 53-00-53-1A-2 STEPS 2. D. (1); 4. A. (2) (A) DETAIL D. <BR><BR>TOOL USED: DIAL DEPTH GAGE<BR>ID:ATS2678<BR>SN:UNKNOWN<BR>DATE:04/2022<BR>DUE:04/2023;[02] VERIFIED APPLICABILITY OF SRM 53-00-53-1A-2. VERIFIED DAMAGE IS OUT OF LIMITS AS NOTED IN CORRECTIVE ACTION ITEM 1.;[03] UPDATED MESURMENT BLOCK;[04] UPDATED MEASUREMENTS;[05] UPDATED PART NUMBER;[06] RECEIVED FCB FLOOR TO SIDE WALL SUPPORT ANGLE PART NUMBER 143A7501U186 BS 500A TO 500D RBL 23; LOCATED AND DRILLED THE NEW SUPPORT ANGLE IASW SRM 51-40-05-0G-0 AND DWG#143A7500;

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