# SDR TWAA0006404

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2000
- Submitted: April 26, 2000
- Operation: Air carrier
- Aircraft: N984Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47412
- Aircraft time: 71,673 hours, 81,088 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- 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/TWAA0006404

## Discrepancy

DURING OP 16 MAINT CHECK, FOUND IN CABIN CORROSION ON FLOORBEAM AT STA 200, LBL 32 IN TO 43 IN.  INSTALLED FLOORBEAM, FABRICATED FROM EXTRUSION, PER SRM 53-11-1, FIG 11.  INSTALLED RIVETS PER SRM 51-30-2.  PARTS TREATED PER SRM 51-10-3.

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