# SDR SWAA2023113013592

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2023
- Submitted: November 30, 2023
- Operation: Air carrier
- Aircraft: [N8553W](https://openairdocs.org/aircraft/N8553W), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63601
- Aircraft time: 19,705 hours, 9,889 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: UNKNOWN
- Condition: Corroded
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023113013592

## Discrepancy

CORROSION ON FLOOR SUPPORT AT MULTIPLE FASTENER HOLES BS947+3 RBL39 -RBL46<[01] REMOVED CORROSION ON FLOOR SUPPORT AT BS947+3 RBL39- RBL46 IN BORE HOLES AND SURROUNDING AREAS; DAMAGE FOUND TO BE OUT OF LIMITS (REMOVED 0.009? OF 0.070?) IAW SRM 53-70-51-1A-1.;[02] VERIFIED CA-1. LONNIE HERMANN (TECHNICIAN); 26-OCT-2023 06:08 UTC<BR>REMOVED CORROSION ON FLOOR SUPPORT AT BS947+3 RBL39- RBL46 IN BORE HOLES AND SURROUNDING AREAS; DAMAGE FOUND TO BE OUT OF LIMITS (REMOVED 0.009? OF 0.070?) IAW SRM 53-70-51-1A-1.;[03] DRILLED REPLACEMENT FLOOR SUPPORT PER SRM 51-40-05.;[04] VERIFIED DRILLING OF FLOOR SUPPORT AND INSTALLATION

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