# SDR DALA2017110107897

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2017
- Submitted: November 1, 2017
- Operation: Air carrier
- Aircraft: [N668DN](https://openairdocs.org/aircraft/N668DN), registered now
- Make and model: Boeing 757232
- Aircraft serial: 25141
- Aircraft time: 82,149 hours, 38,007 cycles
- System (JASC): [3830 · Waste Disposal System](https://openairdocs.org/jasc/3830)
- Part: Drain Mast
- Condition: Corroded
- Location: Fuselage
- 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/DALA2017110107897

## Discrepancy

AFT FUSELAGE DRAIN MAST REMOVED ON WORK CARD 5683351 HAS CORROSION ON UPPER MOUNTING SURFACE AT CORRODED SCREW. REMOVED AND REPLACED DRAIN MAST FOR AFT FUSELAGE AND PERFORMED OPS CHECK IAW AMM 38-31-01.

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