# SDR SWAA2021062876363
- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2021
- Submitted: June 28, 2021
- Operation: Air carrier
- Aircraft: [N207WN](https://openairdocs.org/aircraft/N207WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34012
- Aircraft time: 52,378 hours, 31,227 cycles
- System (JASC): [5320 ยท Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Zone 100
- 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/SWAA2021062876363
## Discrepancy
***CORROSION*** ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500A+2 RBL22 WL157. ; / [01] VERIFIED APPLICABILITY ON SRM53-00-53-OI-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE; [02] REMOVED CORROSION FROM FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500+2 RBL22 WL157; P/N143A7501-198;IN AREA 1'X.7''X0.018''DEEP; IAW SRM 51-10-02--OG-0; ORIGINAL THICKNESS 0.040''; FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2; PAR. 4.A.(2); FIG.103; DETAIL A.
TOOL USED: CALIPER P/N 505-675(IS000887)S/N:05946723; DEPTH GAGE; ID:ATS2473; [03] REMOVED FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS 500A TO BS500D RBL 22; WL157;IAW SRM 51-40-02-OG-0; [04] FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500A TO BS500D RBL22 WAL 157; REPLACEMENT TO BE ACCOMPLISH ON TASK CARD TTG8Q0055VUP; [05] VERIFIED REMOVAL OF CORROSION ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500+2 RBL22 WL157; P/N143A7501-198;IN AREA 1'X.7''X0.018''DEEP; IAW SRM 51-10-02--OG-0; ORIGINAL THICKNESS 0.040''; FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2; PAR. 4.A.(2); FIG.103; DETAIL A.
TOOL USED: CALIPER P/N 505-675(IS000887)S/N:05946723; DEPTH GAGE; ID:ATS2473; [06] VERIFIED FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500A TO BS500D RBL22 WAL 157; REPLACEMENT TO BE ACCOMPLISH ON TASK CARD TTG8Q0055VUP
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