# SDR 9904846635

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N635US
- Make and model: Boeing 747227B
- Aircraft serial: 21682
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Bs 520-560
- 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/9904846635

## Discrepancy

DURING M-CHECK, FOUND CORROSION ON MAIN DECK FLOOR SUPPORT FS 520 - 560, RBL 116.  REPAIRED PER EA 66-171514.

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