# SDR UIEA2021050701094

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2021
- Submitted: May 7, 2021
- Operation: Air carrier
- Aircraft: [N405KZ](https://openairdocs.org/aircraft/N405KZ), registered now
- Make and model: Boeing 747-400
- Registry model: [Boeing 747-400](https://openairdocs.org/model/boeing-747-400) (OpenAirDocs)
- Aircraft serial: 36132
- Aircraft time: 46,520 hours, 9,330 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Bs 1400
- 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/UIEA2021050701094

## Discrepancy

CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1400 LBL 9(<P>BLENEDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORM NDT INSP. REFER TO J/C ATTACHING SHEET NO. 0291706 AND DATA SHEET NO. 5767375-1. ACCOMPLISHED EI NO. T202153M-1167 REV 1 AND EI ATTACHED TO W/O NO. 5767394. CONDITION CHECK NORMAL.</P>)

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