# SDR SWAA2023052531278

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2023
- Submitted: May 25, 2023
- Operation: Air carrier
- Aircraft: [N959WN](https://openairdocs.org/aircraft/N959WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36674
- Aircraft time: 38,285 hours, 23,370 cycles
- System (JASC): [2550 · Cargo Compartments](https://openairdocs.org/jasc/2550)
- Part: Sidewall Support
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2023052531278

## Discrepancy

MULTIPLE AREAS OF CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727B-767 WL 154-155.<[01] REMOVED CORROSION MULTIPLES AREAS ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727B TO BS 767 WL 154-155; REWORKED AREA: L= 2.5' W= 1.2' D= 0.007' ORIGINAL THICKNESS 0.032' REMAINING MAT. 0.025' FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2;[02] VERIFIED CORRECTIVE ACTION ITEM 1; OUT OF LIMITS.;[03] LOCATED AND DRILLED AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727B-767 WL 154-155 PER B737-700 DWG 146A7502 REV A.;[04] UPDATED CORRECTIVE ACTION 3. LOCATED AND DRILLED AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727B-767 WL 154-155 PER B737-700 DWG 146A7502 REV A. SIDEWALL SUPPORT WILL BE INSTALL ON WORK CARD TTG8Q004A4L8.;[05] VERIFIED CORRECTIVE ACTION 4<BR><BR>VERIFIED MEASUREMENT TABLE

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