# SDR P5CA0100582

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2001
- Submitted: July 17, 2001
- Operation: Air carrier
- Aircraft: N920FT
- Make and model: Boeing 747249F
- Aircraft serial: 22237
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- 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/P5CA0100582

## Discrepancy

LEVEL 1 CORROSION - KEEL BEAM LOWER PANEL SUPPORT BEAM CORRODED AT STA 1391 LBL 15 TO RBL 15. BLENDED OUT CORROSION AS PER 53-10-01. CLEANED OUT DEPTH W/IN LIMIT OF 20% THICKNESS. RE-PROTECTED W/ ALODINE & PRIMER AS PER SRM 51-10-02. DIMENSIONS ARE MATERIAL THICKNESS 0.097", MAX ALLOWED DEPTH 0.019", CORROSION REMOVED 0.014".

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