# SDR MALA010193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2001
- Submitted: February 21, 2001
- Operation: Air carrier
- Aircraft: N423XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 423
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Fuselage
- 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/MALA010193

## Discrepancy

FOUND DURING C-CHECK, CORROSION ON TOP FLANGE OF INTERCOSTAL AT LBL10.0 BETWEEN FRAMES AT STATIONS 236.5 AND 258.0 BELOW FLOOR AREA.  REFER TO CELSIUS W/0 193,TASK 1509.  MAINTENANCE REMOVED CORROSION OUT OF LIMIT FROM TOP FLANGE OF INTERCOSTAL.  FABRICATED NEW FLANGE IAW SRM 51-20-42/43.  APPLIED TOPCOAT AND INSTALLED WET SEALED IAW SRM 51-20-41.

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