# SDR DALA2019091305342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2019
- Submitted: September 16, 2019
- Operation: Air carrier
- Aircraft: [N542US](https://openairdocs.org/aircraft/N542US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26489
- Aircraft time: 69,182 hours, 26,555 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- 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/DALA2019091305342

## Discrepancy

(AIRCRAFT 5642, L/P 1268492) AWR, CORROSION OUT OF LIMITS ON FLOOR SUPPORT STRINGER STA 750 AND RBL 10.45, RBL 16.10(REF NRC 202) (C1). SUMMARY OF NRC 00569: (CORROSION LEVEL 2) FLOOR SUPPORT STRINGER STA 750 AND RBL 10.45, RBL 16.10 WAS REPAIRED PER SRM 53-00-53 REPAIR 1. (ET) (HFEC) WAS ACCOMPLISHED NO CRACKS WERE FOUND AFTER CUT OUT PER SRM 53-00-53 REPAIR 1 PARAGRAPH 4 (C) & NDTM PART 6, 51-00-19. SUMMARY OF NRC 00569: (CORROSION LEVEL 2) FLOOR SUPPORT STRINGER STA 750 AND RBL 10.45, RBL 16.10 WAS REPAIRED PER SRM 53-00-53 REPAIR 1. (ET) (HFEC) WAS ACCOMPLISHED NO CRACKS WERE FOUND AFTER CUT OUT PER SRM 53-00-53 REPAIR 1 PARAGRAPH 4 (C) & NDTM PART 6, 51-00-19.

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