# SDR SWAA2023112813649

- 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/SWAA2023112813649

## Discrepancy

SURFACE CORROSION ON L/H TRANSITION ANGLE LBL 21 STA. 727I - 727J (MARKED)<[01] REMOVED CORROSION ON LH TRANSITION ANGLE STA 727I-727J. 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 LH TRANSITION ANGLE STA 727I-727J. REMAINING THICKNESS IS 0.030. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2;[03] LOCATED AND DRILLED NEW L/H TRANSITION ANGLE FROM STA 727 +4 TO 787 PER SRM 51-40-05. TREATED AND PRIMED BARE METAL PER SRM 51-20-01;[04] VERIFIED3. NICHOLAS AYLOR (TECHNICIAN); 26-OCT-2023 07:56 UTC<BR>LOCATED AND DRILLED NEW L/H TRANSITION ANGLE FROM STA 727 +4 TO 787 PER SRM 51-40-05. TREATED AND PRIMED BARE METAL PER SRM 51-20-01 C/W AND OK TO INSTALL;[05] INSTALLED NEW AFT CARGO LH SIDE TRANSITION ANGLE IAW SRM 51-40-02.;[06] C/W INSP.

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