# SDR 20010511CW010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2001
- Submitted: May 11, 2001
- Operation: Air carrier
- Aircraft: [N100YR](https://openairdocs.org/aircraft/N100YR), registered now
- Make and model: Cessna 421B
- Registry model: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (OpenAirDocs)
- Aircraft serial: 0437
- Engine: Cont GTSIO520C
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Cap
- Part number: 51220413
- Condition: Cracked
- Location: Lt Wing
- Part time: 6,580 hours
- 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/20010511CW010

## Discrepancy

DURING AN ANNUAL INSPECTION, A CRACK APPROX   3 INCHES LONG WAS FOUND ON LEFT WING AFT SPAR, UPPER AFT CAP.  BELOW BAGGAGE RACELLE.

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