# SDR CAL960455

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N16521
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47521
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Nose Rib
- Condition: Cracked
- Location: Wing Le
- Part time: 72,275 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/CAL960455

## Discrepancy

HOU - INSPECTION FOUND A .75 INCH CRACK IN BEND RADIUS AT UPPER AFT END OF NOSE RIB AND A .75 INCH CRACK IN NOSE RIB ANGLE CLIP OUTBOARD OF NR 10 SLAT TRACK.  THE CLIP WAS REPLACED AND THE RIB WAS REPAIRED PER ECRA 5720-01260. (X)

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