# SDR SWAA2023122131942

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2023
- Submitted: December 21, 2023
- Operation: Air carrier
- Aircraft: [N8740A](https://openairdocs.org/aircraft/N8740A), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 61860
- Aircraft time: 8,715 hours, 3,984 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Drain Valve
- Part number: UNKNOWN
- Condition: Cracked
- 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/SWAA2023122131942

## Discrepancy

A-113 01. EXTERNAL FUSELAGE DRAIN VALVE AT STA. 351.2+3'; STRINGER 29; IS CRACKED.<[01] REMOVED AND REPLACED FUSELAGE DRAIN VALVE (STA. 351.2+3'; STRINGER 29) I.A.W. AMM 53-31-03-000-801. AND AMM 53-31-03-400-801. E.<BR>TOOL: T/W: AAR 23517. DUE: 04/27/24.<BR>ISSUE TAG: WN36794.;[02] VERIFIED STEP 1<BR>AUDIT CW

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