# SDR SWAA2021120840562

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 4, 2021
- Submitted: December 8, 2021
- Operation: Air carrier
- Aircraft: [N236WN](https://openairdocs.org/aircraft/N236WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34631
- Aircraft time: 52,674 hours, 31,240 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021120840562

## Discrepancy

AFT CARGO LEFT 'Z' CHANNEL IS CORRODED 727-847 ; / [01] EVALUATED AREA; FOUND EXFOLIATING CORROSION PASS THRU IN MULTIPLES AREAS AT ZEE CHANNEL L/H SIDE AFT CARGO COMP FROM STA 727 TO STA 847; FOUND TO BE OUT OF LIMITS PER REF B737-700 SRM 53-00-53-1A-2.; [02] VERIFIED STEP 1; [03] RECEIVED NE W ZEE CHANNEL ASSY FROM STA 727 TO STA 847 AFT CARGO COMP. L/H SIDE. INSTALLATION IS TO BE ACCOMPLISHED IN AD MOC 5360-E-16462-NG; [04] VERIFIED STEP 3

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