# SDR SWAA2022031218005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2019
- Submitted: March 14, 2022
- Operation: Air carrier
- Aircraft: [N7858A](https://openairdocs.org/aircraft/N7858A), registered now
- Make and model: Boeing 737-79P
- Registry model: [Boeing 737-79P](https://openairdocs.org/model/boeing-737-79p) (OpenAirDocs)
- Aircraft serial: 29361
- Aircraft time: 43,866 hours, 28,819 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Corroded
- Location: Aft Cargo Bay
- 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/SWAA2022031218005

## Discrepancy

***CORROSION*** ON THE AFT CARGO R/H ZEE CHANNEL STA 727 TO 767 RBL 23 WL 153 / AFT CARGO R/H Z CHANNEL STA 727-767 RBL23 WL153 FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2; REMOVED AND REPLACED WITH NEW Z CHANNEL P/N 7530898 PO # 753742 IAW SRM 51-40-02-0G-0; DWG 146A7500. 51146U 7/13/19

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