# SDR SWAA2022053100805

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2022
- Submitted: May 31, 2022
- Operation: Air carrier
- Aircraft: [N479WN](https://openairdocs.org/aircraft/N479WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33990
- Aircraft time: 59,976 hours, 35,850 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/SWAA2022053100805

## Discrepancy

CORROSION.....R/H AFT CARGO COMPARTMENT FLOOR @ STA 727D - STA 767 STR 25R WL 160 Z CHANNEL HAS CORROSION IN SEVERAL AREAS. (18-046) / [01] REMOVED CORROSION AT R/H AFT CARGO COMPARTMENT FLOOR STA 727D -STA767 STR 25R WL160 Z CHANNEL AS PER REF B737 SRM 51-10-02-0G -0 ;FOUND EXFOLIATE CORROSION OUT OF LIMITS AS PER REF B737 SRM 53-00-53-1A-2;[02] RECEIVED NEW AFT CARGO ZEE ASSY P/N 146A7502-27; NEW ZEE TO BE INSTALLED ON CUSTOMER BAR CODE TTG8Q004FJTU;[03] VERIFIED STEP 1.

---
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.