# SDR UIEA2021040200809

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2021
- Submitted: April 2, 2021
- Operation: Air carrier
- Aircraft: [N492MC](https://openairdocs.org/aircraft/N492MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29253
- Aircraft time: 93,536 hours, 16,163 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Bs 1240 S6r
- 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/UIEA2021040200809

## Discrepancy

CORROSION - FOUND CORROSION AT STA 1240 5-6R INNER SURFACE SKIN.(<P>REMOVED THE AFFECTED FASTENERS IAW SRM 51-40-02 REV 91. BLENDED UT THE DAMAGED AREA IAW SRM 53-00-01 REV 91. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO 0296229, 0296264 8 DATA SHEET NO 5623253-1. ACCOMPLISHED EI NO T2021A53M-713 REV 1. CONDITION CHECK NORMAL AND JOB COMPLETED.</P>)

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