# SDR SWAA2023112813656

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2023
- Submitted: November 28, 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: Angle
- 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/SWAA2023112813656

## Discrepancy

SURFACE CORROSION ON R/H TRANSITION ANGLE STA. 727H - 727I RBL 21<[01] REMOVED CORROSION ON RH TRANSITION ANGLE STA 727H - 727I. REMAINING THICKNESS IS 0.030. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2;[02] C/W INSP. REMOVED CORROSION ON RH TRANSITION ANGLE STA 727H - 727I. REMAINING THICKNESS IS 0.030. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2;[03] REMOVED AFT CARGO RH TRANSITION ANGLE IAW SRM 51-40-02.;[04] LOCATED AND DRILLED NEW R/H (RBL 21) TRANSITION ANGLE FROM STATION 727+4 - 767 PER SRM 51-40-05; TREATED AND PRIMED BARE METAL PER SRM 51-20-01;[05] OK TO INSTALL.;[06] INSTALLED NEW R/H (RBL 21) TRANSITION ANGLE FROM STATION 727+4 - 767 PER SRM 51-40-02;[07] C/W INSP. INSTALLED NEW R/H (RBL 21) TRANSITION ANGLE FROM STATION 727+4 - 767 PER SRM 51-40-02

---
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.