# SDR UIE2002F00004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2002
- Operation: Air carrier
- Aircraft: [N491MC](https://openairdocs.org/aircraft/N491MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29252
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Web
- Condition: Cracked
- Location: Bs2658 Atlbl25
- Part time: 12,440 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIE2002F00004

## Discrepancy

DURING ROUTINE INSPECTION AT CURRENT C CHECK, FOUND LOWER BULKHEAD WEB CRACKED 0.60 INCH LONG AT BS 2658, BETWEEN WL 260 AND 265 AND BETWEEN L/S LBL 25 AND LBL 30.  CUT WAY CRACKED AREA.  PERFORMED DYE CHECK INSPECTION OF CUT-OUT AREA PER SOPM 20-20-20.  NO ADDITIONAL CRACKING FOUND.  FABRICATED FILLER, REPAIR DOUBLER AND ANGLE.  INSTALLED PER STANDARD SRM.  REFINISHED PER SRM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.