# SDR DALA2023052304121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2023
- Submitted: May 23, 2023
- Operation: Air carrier
- Aircraft: [N551NW](https://openairdocs.org/aircraft/N551NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26498
- Aircraft time: 55,630 hours, 23,931 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- 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/DALA2023052304121

## Discrepancy

SHIP 5651 MAIN CABIN FLOOR STRUCTURE FLOOR PANEL SUPPORT STRUCTURE IS CORRODED AREA BELOW THE RH AFT E&E DOOR AREA APPROX AT STA 1040. CORRECTIVE ACTION: REMOVED CORROSION ON FLOOR SUPPORT STA 1040.0, OUT OF LIMITS IAW B757 SRM 53-40-13. REMOVED AND REPLACED FLOOR SUPPORT USING BASICS 551 IAW SRM 53- 40-13-01-1 FIG 1 ITEM 5 AND RESTORED SURFACE PROTECTION IAW B757 AMM 51-21. (2775028)

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