# SDR SWAA2024011529026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2023
- Submitted: January 15, 2024
- Operation: Air carrier
- Aircraft: [N8562Z](https://openairdocs.org/aircraft/N8562Z), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 64171
- Aircraft time: 19,397 hours, 9,806 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: UNKNOWN
- Condition: Corroded
- Location: Zn 200 Fus Top
- 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/SWAA2024011529026

## Discrepancy

AFT PASSENGER COMPARTMENT FLOOR STRUCTURE HAS EVIDENCE OF CORROSION UNDER AND AROUND SEALANT AT STA 947 RBL 25.<[01] REMOVED AFT PASSENGER COMPARTMENT FLOOR STRUCTURE CORROSION AT STA 947 RBL 25 ;MEASURED THICKNESS DEPTH REMAIN .151' ORIGINAL THICKNESS MEASURED .189'<BR>WIDTH MEASURED REMAIN .217' ORIGINAL .221'<BR>FOUND OUT OF LIMIT PER SRM 53-70-51-1A-1;[02] FABRICATED REPAIR SHIM PER SRM 53-40-51-2R-8 AND EA # 23-153-03630<BR>OK TO INSTALL;[03] WRITTEN IN ERROR;[04] FABRICATED REPAIR SHIM PER SRM 53-70-51-2R-8 AND EA # 23-153-03630;[05] WORK ENTRY ITEM #2 WRITTEN IN ERROR. VERIFIED REPAIR SHIM FABRICATED PER SRM 53-70-51-2R-8 AND EA # 23-153-03630. (RII);[06] REJECT: MEASUREMENT #17 'CORRODED ELEMENT PART NUMBER ()' HAS P/N 1475504-19 ENTERED WHICH DOES NOT SHOW AS APPLICABLE IN EITHER THE BOEING PART NUMBER SEARCH OR THE AIPC SEARCH. <BR><BR>PLEASE VERIFY PART NUMBER BEFORE CLOSING OUT FAULT.<BR><BR>**PLEASE NOTE THAT ALL CORRECTIONS MUST BE DONE ON ORIGINAL FAULT. INSPECTION WILL CLEAR REJECTION FAULT AFTER REJECTED TASK/FAULT HAS BEEN CORRECTED.**;[07] INSPECTION CONFIRMS MEASUREMENT #17 HAS BEEN CORRECTED WHICH CLEARS THE REJECTION NOTED IN CORRECTIVE ACTION #6. THE ATTACHED REJECTION CARD HAS BEEN CLEARED AT THIS TIME PER MPM 51.03.01.;[08] INSTALLED SHIM AND LAV TIEDOWN FITTING PER SOPM 20-50-01. COMPLIED WITH ALL WORKSTEPS FROM EA 23-153-03630

---
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.