# SDR DALA2019050202857

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2019
- Submitted: May 6, 2019
- Operation: Air carrier
- Aircraft: [N557NW](https://openairdocs.org/aircraft/N557NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 33393
- Aircraft time: 49,501 hours, 21,565 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- 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/DALA2019050202857

## Discrepancy

SHIP 5657 AFT CARGO THRESHOLD - STA. 1380-1440 HAS CORROSION ON LWR SIDE - AT NUT PLATE FASTENERS. CORRECTIVE ACTION: SEE NR FOR ADDITIONAL INFORMATION 001-0290:2020-2317/004 00188 CLEANED AREA AND FOUND WITHIN LIMITS, RESTORED FINISH PER SRM. (1054880)

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