# SDR 0003646717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2000
- Submitted: October 11, 2000
- Operation: Air carrier
- Aircraft: [N617US](https://openairdocs.org/aircraft/N617US), registered now
- Make and model: Boeing 747251F
- Aircraft serial: 21121
- Aircraft time: 82,198 hours, 21,171 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0003646717

## Discrepancy

DURING M CHECK FOUND CORROSION ON KEEL BEAM FROM BS 1466 TO 1480.  REPAIRED PER EA 67-178205.

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