# SDR SWAA2023050119326

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2023
- Submitted: May 1, 2023
- 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: 53,310 hours, 34,766 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- 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/SWAA2023050119326

## Discrepancy

CORROSION SPOTS ON AFT CARGO COMPARTMENT ZEE CHANNEL B.S.727B - 727D RBL. 22' W.L. 156. (51-002) CORROSION SPOTS ON AFT CARGO COMPARTMENT EE CHANNEL B.S.727B - 727D RBL. 21' W.L. 156.<[01] REF TASK CARD: TTG8Q00JZHM2 FOR AFT CARGO COMPARTMENT ZEE CHANNEL AT LBL. 22' REPLACEMENT;[02] CORRECTION TO STEP 1.<BR>REF TASK CARD: TTG8Q00JZGZA FOR AFT CARGO COMPARTMENT ZEE CHANNEL AT RBL. 22' REPLACEMENT;[03] VERIFIED STEP 2.

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