# SDR FDEA202201200104

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2022
- Submitted: February 17, 2022
- Operation: Air carrier
- Aircraft: [N843FD](https://openairdocs.org/aircraft/N843FD), registered now
- Make and model: Boeing 777FHT
- Registry model: [Boeing 777FHT](https://openairdocs.org/model/boeing-777fht) (OpenAirDocs)
- Aircraft serial: 39286
- Aircraft time: 40,507 hours, 6,123 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Pan
- Part number: 143W23443
- Condition: Corroded
- Location: Waste Drain
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202201200104

## Discrepancy

FOUND WASTE DRAIN VALVE ASSEMBLY INSTALLATION HOLE SURROUND CORROSION. WASTE DRAIN VALVE ASSEMBLY INSTALLATION CORROSION WASTE WATER SERVICE PANEL   REMOVED AND REPLACED AS PER B777 SRM 51-40-02 REV 40.0 . REPAIR CLASSIFIED AS MAJOR   PER GMM 6-2-100.

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