# SDR AT9900107

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N806AT](https://openairdocs.org/aircraft/N806AT), 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: 47379
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- Condition: Corroded
- Location: Pax Doorway
- 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/AT9900107

## Discrepancy

SCHEDULED INSPECTION AT AERO CORP, FL, FOUND THE AFT ENTRY THRESHOLD HAS SEVERAL ENLONGATED HOLES, ALSO E/E COMPARTMENT FLOORBOARD THRESHOLD WITH SURFACE CORROSION AROUND FASTENERS ON UNDERSIDE AND ENLONGATED HOLES.  FABRICATED, HEAT TREATED AND INSTALLED NEW THRESHOLDS IAW DC9 SRM 51-10-4, 51-10-2A, AND RES NR 99196.

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