# SDR USAA990969

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N963VJ
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47508
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: Bs 58.75
- Part time: 71,760 hours
- 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/USAA990969

## Discrepancy

PIT - DURING RON, FOUND 3 VERTICAL CRACKS .5 INCH, .75 INCH, .75 INCH LEFT SIDE STATION 58.750 FORWARD RIVET LINE BETWEEN 2.5 AND 5 INCH BELOW COCKPIT FLOOR LINE.  STOP DRILLED CRACKS, INSTALLED EXTERNAL DOUBLER PER SRM 53-01, FIG 2.  (M)

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