# SDR SWAA2023020186281

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2022
- Submitted: February 2, 2023
- Operation: Air carrier
- Aircraft: N564WN
- Make and model: Boeing 737-73V
- Registry model: [Boeing 737-73V](https://openairdocs.org/model/boeing-737-73v) (OpenAirDocs)
- Aircraft serial: 30244
- Aircraft time: 55,884 hours, 38,078 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sill Drain
- Part number: NOTENTERED
- Condition: Corroded
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023020186281

## Discrepancy

CORROSION WATER DRAIN VALVE AFT SILL DRAIN BLADDER ASSEMBLY AT AFT GALLEY AREA (1 EA) 2022-695556<[01] REPLACED WATER DRAIN VALVE AFT SILL DRAIN BLADDER ASSEMBLY AT AFT GALLEY AREA (1 EA) IAW B737-700 AMM 38-31-03-400-802 AND AMM 38-31-03-000-802;[02] CORRECTED STEP 1<BR>REPLACED WATER DRAIN VALVE AFT SILL DRAIN BLADDER ASSEMBLY AT AFT GALLEY AREA (1 EA) IAW B737-700 AMM 38-31-03-400-802 AND AMM 38-31-03-000-802 NOT FOUND LEAK. SEE INDIVIDUAL SIGN OFF BELLOW;[03] CORRECTIVE ACTION STEP 2 CERTIFIED

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