# SDR EIA2001158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2001
- Submitted: May 1, 2001
- Operation: Air carrier
- Aircraft: [N471EV](https://openairdocs.org/aircraft/N471EV), registered now
- Make and model: Boeing 747273C
- Aircraft serial: 20651
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Corroded
- Location: Wing Center Box
- 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/EIA2001158

## Discrepancy

FOUND BS 1241 LEFT AND RIGHT WING CENTER SECTION REAR SPAR WEB AFT SURFACE AT BULKHEAD FTG AREA CORRODED AND BLENDOUT EXCEEDS SRM LIMITS.  REMOVED CORROSION AND REPAIRED PER BSB 57-2263.  SECTION OF PX WEB ANGLE TRIMMED FOR ACCESS, NEW SECTION SPLICEDIN PER BOEING MSG AND RS R-57-12-34638.  (M)

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