# SDR 0203396638

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2002
- Submitted: October 9, 2002
- Operation: Air carrier
- Aircraft: N638US
- Make and model: Boeing 747251B
- Aircraft serial: 23549
- Aircraft time: 67,000 hours, 8,717 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Seat Track
- Condition: Cracked
- 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/0203396638

## Discrepancy

During "L" check found corrosion on seat track at BS 492 LBL 35. Repaired per EA 66-192645.

---
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.