# SDR TWAA9906310

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N953U
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49267
- System (JASC): [5530 · Vertical Stabilizer](https://openairdocs.org/jasc/5530)
- Part: Angle
- Condition: Cracked
- Location: Bs 1421
- 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/TWAA9906310

## Discrepancy

DURING CHECK-C MAINT, FOUND A .1875 IN CRACK AT THE RT FWD DORSAL FIN ATTACH ANGLE AT STA 1421.  REMOVED AND REPLACED ATTACH ANGLE PER SERVICE BULLETIN 53-223 PER MD9-AD-13.

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