# SDR UIEA0007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2000
- Submitted: April 4, 2000
- Operation: Air carrier
- Aircraft: [N506MC](https://openairdocs.org/aircraft/N506MC), registered now
- Make and model: Boeing 747-2D3B
- Registry model: [Boeing 747-2D3B](https://openairdocs.org/model/boeing-747-2d3b) (OpenAirDocs)
- Aircraft serial: 21252
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Bolt
- Condition: Cracked
- Location: Fuselage
- Part time: 70,461 hours
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA0007

## Discrepancy

DURING INSPECTION OF LEFT KICK PLATE, AFT FACE CENTER TANK, LOWER SPAR PER SB747-57A2309, TWO BOLTS WERE FOUND SHEARED.  ATLAS QC INSISTED ON AND U/T INSPECTION AND DISCOVERED AN ADDITIONAL TWO BOLTS FAILED.  FAILED BOLTS REMOVED, HOLES CLEANED, INSPECTED, REINSTALLED NEW INCONEL BOLTS PER SB.  ATLAS RECOMMENDS DOING AN U/T INSPECTION REGARDLESS OF THE VISUAL FINDINGS. CURRENT VISUAL INSPECTION PROCEDURES PER SB ARE WEAK AT BEST.  (M)

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