# SDR UIEA202002210284

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2020
- Submitted: February 21, 2020
- Operation: Air carrier
- Aircraft: [N408MC](https://openairdocs.org/aircraft/N408MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29261
- Aircraft time: 81,911 hours, 13,730 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Splice
- Condition: Cracked
- Location: Bs 939-991
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA202002210284

## Discrepancy

LHS BS 980 TO 990 STR 38R DRAG SPLICE FTG AREA ONE EACH FASTENER HOLE FOUND CRACK AND CORROSION AT SKIN LAYER.(<P>FUSELAGE SKIN IS REPAIRED AS PER SRM 53-20-01-2R-2 REPAIR 2 FIG 201 AT BS 939.5 TO 991.5 BETWEEN STR 37L-39L. THIS REPAIR IS A CATEGORY B REPAIR. SUPPLEMENTAL INSPECTION IS REQUIRED AS PER SRM 53-20-01-2R-2 REPAIR 2 FIG 201 TABLE III REV 87- 20OCT2019.</P>)

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