# SDR UIEA2022042800414

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2022
- Submitted: May 4, 2022
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 94,642 hours, 16,669 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2022042800414

## Discrepancy

CORROSION DAMAGE ON LH HST CENTER SECTION UPPER SKIN TOP SURFACE BETWEEN STAB STA 165.64 AND 172.4, STRINGER 3(<P>1) REMOVER THE AFFECTED FASTENERS IAW SRM 51-40-02 REV 94. 2) BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 94. 3) PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO 0325737 AND DATA SHEET NO 6918368-1. 4) ACCOMPLISHED EI NO T2022A55M-1031 REV 2. 5) CONDITION CHECK NORMAL AND JOB COMPLETED</P>)

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