# SDR 0200759865

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2002
- Submitted: March 19, 2002
- Operation: Air carrier
- Aircraft: N774NC
- 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: 47776
- Aircraft time: 55,317 hours, 51,742 cycles
- System (JASC): [5410 · Nacelle/Pylon, Main Frame](https://openairdocs.org/jasc/5410)
- Part: Rib
- Condition: Cracked
- 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/0200759865

## Discrepancy

During MCK in ATL, the upper cap of the closing rib was found cracked at YN 146. The crack was stop drilled at 2 ends and a repair angle was installed. Repaired per EA 98-188393.

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