# SDR DALA1120669878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2011
- Submitted: March 21, 2011
- Operation: Air carrier
- Aircraft: N787NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 48149
- Aircraft time: 67,736 hours, 61,525 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- 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/DALA1120669878

## Discrepancy

BETWEEN GEAR DOORS THRU ACCESS PANEL 5501NW LOWER SKIN UPPER SURFACE HAS CORROSION.  REMOVED CORROSION ORIGINAL MAT. .060" IAW DWG 9923459.  UT INSP IAW  NDT SPM 04-00-07 FOUND CORR STILL PRESENT WITH .040" REMAINING.  FOUND TO BE OUT OF LIMITS IAW SRM 53-01 FIG 1 AND DWG 9923459.  RECEIVED NEW WEB SKIN P/N 9923459-35, INSTALLED NEW SKIN IAW SRM 51-30-2.

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