# SDR AT9900334

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N801AT](https://openairdocs.org/aircraft/N801AT), registered now
- 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: 47275
- System (JASC): [5248 · Tail Cone Doors](https://openairdocs.org/jasc/5248)
- Part: Doubler
- Part number: 991556515
- Condition: Cracked
- Location: Ventral Door
- 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/AT9900334

## Discrepancy

SCHEDULED INSPECTION AT AERO CORP, FL.  FOUND AN EXISTING REPAIR DOUBLER CHAFED THRU AFT VENTRAL DOOR UPPER SECTION.  REMOVED, ORDERED, LOCATED, DRILLED, AND INSTALLED UPPER CHANNEL AND Z ANGLE IAW DC9 SRM 51-10-4, 51-30-2, 51-30-4, AND BOEING DRAWING NR 9915565.  Z ANGLE (P/N 9915565-133) OFF.

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