# SDR UIEA200400103

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2004
- Submitted: June 25, 2004
- Operation: Air carrier
- Aircraft: [N808MC](https://openairdocs.org/aircraft/N808MC), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21048
- Engine: Ge CF650E2
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- Part number: 65B941091
- Condition: Cracked
- Location: Fuselage
- 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/UIEA200400103

## Discrepancy

D-CHECK, DURING MAINTENANCE INSPECTION.  NR 4 PYLON LT SIDE, BULKHEAD STRAPS WERE FOUND CRACKED AT NAC STA 286.0 AND WL 146.5.  THE AFT END OF THE STRAP CRACK WAS STOPPED DRILLED AND HFEC INSPECTED TO ENSURE CRACK CONTAINMENT.  THE SKIN ACCESS CUT OUT EDGE CHAFING DAMAGE WAS REMOVED BY BLENDING.  REPAIR DOUBLERS WAS FABRICATED FROM 0.063 INCH THICK TITANIUM SHEET WERE INSTALLED COMMON TO THE STRUT OUTER SKIN ASSY USING MECHANICAL FASTENERS.

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