# SDR 0301446624

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2003
- Submitted: October 2, 2003
- Operation: Air carrier
- Aircraft: [N624US](https://openairdocs.org/aircraft/N624US), registered now
- Make and model: Boeing 747251B
- Aircraft serial: 21706
- Aircraft time: 92,844 hours, 15,625 cycles
- Engine: Pwa JT9D*
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- 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/0301446624

## Discrepancy

DURING "L" CHECK FOUND CRACKS IN THE FLOORBEAM WEB, UPPER SECTION AND FRAME WEB AT BS 340 LT. THERE WERE CRACKS IN THE FLOORBEAM UPPER SECTION AT BS 340 RT.  ALSO CRACKS WERE FOUND IN THE FLOORBEAM WEB, UPPER SECTION AND THE FRAME WEB AT BS 360 RT.  REPAIRED IAW EA 66-165085.

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