# SDR DALA12004046307

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2012
- Submitted: July 30, 2012
- Operation: Air carrier
- Aircraft: N667US
- Make and model: Boeing 747451
- Aircraft serial: 24222
- Aircraft time: 95,992 hours, 11,758 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Bs 580
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA12004046307

## Discrepancy

DURING INSPECTION, FOUND MAIN DECK CABIN ZONE B LEFT SIDE FLOOR AREA, AT BS 580 LT ALONG LBL 91.67 INTERCOSTAL FLANGE CORRODED.  MAINTENANCE REMOVED DAMAGED INTERCOSTAL, FABRICATED AND REPLACED NEW INTERCOSTAL AS PER ERA 503518-14.

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