# SDR 0104929909

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2001
- Submitted: January 4, 2002
- Operation: Air carrier
- Aircraft: N959N
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47255
- Aircraft time: 79,456 hours, 94,687 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Stiffener
- 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/0104929909

## Discrepancy

During H-CK in ATL, one 1/2"crack was found in the station 756 bulkhead. The crack is located in the upper end of the verticle stiffener at X=-22. Repaired per EA 99-181259.

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