# SDR 99ZZZX4371

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N602FF
- Make and model: Boeing 747124
- Aircraft serial: 19734
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Cracked
- Location: Bs 1400
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4371

## Discrepancy

FOUR CRACKS WERE FOUND BY AMECO C-CHECK ON FLOORBEAM WEB AT BS 1400, LBL 99 - LBL 121 IN M/D.  SIZE 3.2 INCHES, 4 INCHES 1.5 INCHES, AND 1.5 INCHES.

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