# SDR UIA9306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2004
- Submitted: February 27, 2004
- Operation: Air carrier
- Aircraft: [N17923](https://openairdocs.org/aircraft/N17923), registered now
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53534
- Aircraft time: 12,141 hours, 14,359 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Corroded
- Location: Lt Wing
- 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/UIA9306

## Discrepancy

DURING S90M CHECK OF DATUM A/C, FOUND CORROSION, UPPER SURFACE OF FRONT SPAR LOWER CHORD OF LT WING AT STA XRS 509.2.  LT WING (STA. XRS 115-601) AND RT WING (STA. XRS 73-477) UPPER SKIN. T/E ALUMINUM STRIP OF RUDDER THAT HAD PENETRATED THROUGH THE ENTIRE THICKNESS.4.  NR 1-NR 2 ON LOWER WING SURFACE OF LT WING AT STA XRS=546.5. FUSELAGE FRAME LOWER TEE (P/N:9912246-115).   THE CORROSION LOCATED STA 1437, L29R-L26R.6. PFM MAJOR REPAIR .

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