# SDR SWAA2021072728273

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2020
- Submitted: July 27, 2021
- Operation: Air carrier
- Aircraft: [N8315C](https://openairdocs.org/aircraft/N8315C), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38811
- Aircraft time: 26,646 hours, 11,735 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Frame
- Condition: Corroded
- Location: Bs 947 Bulkhead
- 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/SWAA2021072728273

## Discrepancy

AFT CARGO COMPARTMENT AFT BULKHEAD STRUCTURE LOWER CHORD STA 947 LBL10-RBL21 WL178 HAS CORROSION ON UPPER SURFACE / EVALUATED CORROSION ON AFT CARGO AFT B/H STRUCTURE LOWER CHORD AT STA 947 LBL 10 TO LBL 21 ANS WATER LINE 178; FOUND TO BE OUT OF LIMITS DUE TO NO PUBLISHED DATA IAW SRM 51-10-02-0G- STEP 9.C. REMOVED AND REPLACED; LOWER CHORD; P/N 149A8118-29 IAW SRM 51-40-02-0G-0 AND DRAWING 149A8110 REV B AND DRAWING 149A8117 REV - 149A8118-29

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