# SDR SWAA2022031550240

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2019
- Submitted: March 15, 2022
- Operation: Air carrier
- Aircraft: [N449WN](https://openairdocs.org/aircraft/N449WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32469
- Aircraft time: 55,242 hours, 32,689 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: None
- Part number: 143A948534
- Condition: Corroded
- Location: Fwd Cargo Rh
- 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/SWAA2022031550240

## Discrepancy

FORWARD CARGO PIT AFT BULKHEAD STRUCTURE STA 500D RIGHT LOWER CHORD HAS CORROSION ON UPPER SURFACE RBL 25 WL 157 / EVALUATED DAMAGE AS NO PUBLISHED LIMITS FOUND FOR RH STA 500D BULKHEAD SUPPORT STRUCTURE. REMOVED BULKHEAD SUPPORT STRUCTURE IAW SRM 51-40-02-0G-0. VERIFIED NEW RH STA 500D SUPPORT STRUCTURE AS PN 143A9485-34 IAW DWG 143A9481 REV- A TAG # RA0154. LOCATED AND DRILLED NEW RH STA 500D SUPPORT STRUCTURE IAW DWG 143A7902 REV-. INSTALLED NEW RH STA 500D SUPPORT STRUCTURE BULKHEAD IAW DWG 143A7902 REV -

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