# SDR DALA2022030701480

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2022
- Submitted: March 7, 2022
- Operation: Air carrier
- Aircraft: [N702TW](https://openairdocs.org/aircraft/N702TW), registered now
- Make and model: Boeing 757-2Q8
- Registry model: [Boeing 757-2Q8](https://openairdocs.org/model/boeing-757-2q8) (OpenAirDocs)
- Aircraft serial: 28162
- Aircraft time: 89,830 hours, 23,826 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/DALA2022030701480

## Discrepancy

SHIP 6801 FOUND CORROSION AT MID-LAV DUMP VALVE CUT-OUT. CORRECTIVE ACTION: REMOVED MID LAV DUMP VALVE ASSY TO ACCESS CORRODED AREA PER B757 AMM 38-32 (562634). C/W COMPLETION OF STEPS 1,2,3,4,5 AND 6 IAW PRI 597635-14 REV 1. TRANSFERRED TO NON-ROUTINE #1. SUMMARY OF NON-ROUTINE #1. PERFORMED ALL STEPS OF ER/A 597635-14 REV ORIGINAL. ALL RII STEPS COMPLETE. OPERATIONAL AND LEAK CHECK OF MID LAV SYSTEM COMPLETE. (8491843)

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