# SDR SWAA2023020188506

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2023
- Submitted: February 2, 2023
- Operation: Air carrier
- Aircraft: [N8660A](https://openairdocs.org/aircraft/N8660A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36654
- Aircraft time: 27,149 hours, 12,725 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: NOTENTERED
- 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/SWAA2023020188506

## Discrepancy

AFT CARGO L/H TRANSITION ANGLE HAS NUMEROUS AREAS OF CORROSION FROM STA 787+9 TO 727H+12<[01] COMPLIED WITH TOOL REQUIREMENT.;[02] COMPLIED WITH MEASUREMENTS.;[03] REMOVED CORROSION FROM AREAS PER SRM 53-00-53-1A-2 (REMAINING THICKNESS<BR>0.037'). TRANSITION ANGLE IS OUT LIMITS PER SRM 53-00-53-1A-2.;[04] REMOVED LH TRANSITION ANGLE STA 787+9 TO 727H +12 PER SRM 51-40-02.;[05] DRILLED REPLACEMENT REPAIR ZEE CHANNEL SIDEPLATE PER SRM 53-00-53-2R-6 AT STA 787+9 TO 727H+12. OK TO TREAT AND PAINT.;[06] DRILLED REPLACEMENT REPAIR ZEE CHANNEL SIDEPLATE PER SRM 53-00-53-2R-6 AT STA 787+9 TO 727H+12. OK TO TREAT AND PAINT. C/W INSPECTION;[07] ALODINE TREATED AND PRIMED REPLACEMENT ZEE CHANNEL PER SRM 51-20-01 AND AMM 51-21-72. OK TO INSTALL.;[08] BEGAN INSTALLATION PER SRM 53-00-53-2R-6.;[09] REPAIRED LH TRANSITION ANGLE STA 787+9 TO 727H+12; LBL 21 PER <BR>SRM 53-00-53-2R-6.

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