# SDR SWAA2020041334413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2020
- Submitted: April 13, 2020
- Operation: Air carrier
- Aircraft: [N8628A](https://openairdocs.org/aircraft/N8628A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42384
- Aircraft time: 21,477 hours, 9,446 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Tee Fitting
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020041334413

## Discrepancy

BS772 RBL14-18 WL155 AFT CARGO BAY FLOOR STRUCTURE 2 AREAS OF CORROSION / REMOVED CORROSION FROM TEE STRUCTURE LOCATED AT BS 772 RBL 14 - 18. WL 155 AFT CARGO BAY FLOOR STRUCTURE IAW B737 SRM 51-10-02-0G-0 STEP 6. ORIGINAL MATERIAL THICKNESS IS 0.080'; REMAINING 0.075'; LOSS OF 0.005'. TEE STRUCTURE FOUND TO BE OUT OF LIMITS IAW SRM 51-10-02-0G-0 STEP 9. REPLACED OUT OF LIMITS TEE STRUCTURE ON BENCH WITH NEW PART # 146A9401-4 A-TAG # WN4356.

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