# SDR DALA2023051904016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2023
- Submitted: May 19, 2023
- Operation: Air carrier
- Aircraft: [N939DZ](https://openairdocs.org/aircraft/N939DZ), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 38720
- Aircraft time: 27,661 hours, 14,366 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023051904016

## Discrepancy

(LOG 2769820) UPON REMOVEL OF SUBTHESHOLD WEB CORROSION WAS FOUND ON VERTICAL WEB STA798, RBL27, WL160-164. REMOVED AND REPLACED VERTICAL WEB FROM STA 798 TO 847 RBL 27 WL 160-164 AFT CARGO DOOR SURROUND IAW B737 SRM 51-40-02 AND BOEING DWG# 146A8120.

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