# SDR TWAA9810004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N992Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47095
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 703-720
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9810004

## Discrepancy

MCI - DURING OP 16 MAINTENANCE CHECK FOUND CORROSION OF FLOORBEAM NUT PLATE HOLE AREA FROM STA 703 TO STA 720, ABOVE S28L.  REPAIRED PER SRM 51-40-4, AND STANDARD PRACTICES.  INSTALLED DOUBLER.  TOTAL TIME:  72,114 HOURS.  TOTAL CYCLES:  78,035.  (X)

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