# SDR DALA2023022701438

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2023
- Submitted: February 27, 2023
- Operation: Air carrier
- Aircraft: [N872DN](https://openairdocs.org/aircraft/N872DN), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 31983
- Aircraft time: 18,962 hours, 7,363 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: None
- Condition: None
- 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/DALA2023022701438

## Discrepancy

(LOG 4105765) DURING INSPECTION FOUND CORROSION AROUND BELLY DRAINS AT STATIONS 420,460,480,500A,500B,500D,500I AND 500U. CORROSION CORRECTED ON ELECTRONIC NON ROUTINE CARDS 1,2,3,4,5,6,7 AND 8 PER B737 SRM 53-30-01.

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