# SDR SCNA20230512146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2023
- Submitted: May 12, 2023
- Operation: Air carrier
- Aircraft: [N834SY](https://openairdocs.org/aircraft/N834SY), registered now
- Make and model: Boeing 737-8KN
- Registry model: [Boeing 737-8KN](https://openairdocs.org/model/boeing-737-8kn) (OpenAirDocs)
- Aircraft serial: 40245
- Aircraft time: 41,839 hours, 17,284 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Unknown
- Part number: 147A8540U7
- Condition: Corroded
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA20230512146

## Discrepancy

DEFECT NR00222: L2 MOP SEAL HAS AREAS OF CORROSION (MARKED). - - - RESOLUTION: EVALUATED CORROSION ON MOP SEAT L2 FOUND TO BE OUT OF LIMITS, REMOVED AND REPLACED MOP SEAL PER B737-800 SRM 51-40-02-0G AND DWG #147A8501 REV B. SRM REF 53-70-15-1A-1. CAUSE OF CORROSION:  MOISTURE.

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