# SDR SWAA2024062889980

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2024
- Submitted: June 28, 2024
- Operation: Air carrier
- Aircraft: [N8574Z](https://openairdocs.org/aircraft/N8574Z), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63588
- Aircraft time: 19,849 hours, 10,149 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: UNKNOWN
- Condition: Corroded
- Location: Zone 200
- 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/SWAA2024062889980

## Discrepancy

AFT CABIN WET AREA FLOOR STRUCTURE INTERCOSTAL AT STA 947+4'; AFT OF RIGHT HAND LAV MOUNTS HAS CORROSION AROUND FASTENER HOLE. (MARKED)<[01] BLENDED OUT CORROSION AT AFT CABIN FLOOR STRUCTURE SUPPORT ANGLE STA 947+4?; RBL 28 PER SRM 51-10-02. MEASURED REMAINING MATERIAL THICKNESS OUT OF LIMITS PER SRM 53-70-51-1A-1 FIG.104; DETAIL E.;[02] REMOVED FLOOR STRUCTURE SUPPORT ANGLE PER SRM 51-40-02. LOCATED AND DRILLED NEW SUPPORT ANGLE P/N 147A5676-6 PER SRM 51-40-05.;[03] STEPS 1 & 2 INSPECTED WORK ABOVE;[04] APPLIED ALODINE AND PRIMER TO NEW SUPPORT ANGLE PER AMM 51-21-41 AND 51-21-72. INSTALLED NEW SUPPORT ANGLE PER SRM 51-40-02.;[05] INSPECTED WORK ABOVE

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.