# SDR AT9900399

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N464AT
- Make and model: Boeing 737-2L9
- Registry model: [Boeing 737-2L9](https://openairdocs.org/model/boeing-737-2l9) (OpenAirDocs)
- Aircraft serial: 21278
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Bs 1006-1016
- 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/AT9900399

## Discrepancy

SCHEDULED INSPECTION AT TIMCO LAKE CITY, FL.  FOUND THE INTERCOSTAL AT BS 1006 TO 1016 LBL 4 CORRODED.  REMOVED INTERCOSTAL, FABRICATED REPAIR ANGLE, HEAT TREATED, TRIMMED, DRILLED UP, DEBURRED, TREATED, PRIMED AND INSTALLED IAW B737 SRM 51-10-6, 51-40-3, 51-10-2, 51-30-2, 51-20-11.

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