# SDR TWAA0003923

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2000
- Submitted: April 13, 2000
- Operation: Air carrier
- Aircraft: N9406W
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53126
- Aircraft time: 22,306 hours, 10,547 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 1117 - 1136
- 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/TWAA0003923

## Discrepancy

DURING CHECK-C MAINT, FOUND CORROSION ON CABIN MEMBRANE AREA, LONGERON 18R, FROM STA 1117 TO 1136.  REPLACED MEMBRANE PER SPM 6-70-01, PAGE 3, AND DOUGLAS DRAWING 9930612.

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