# SDR UIEA2020042800893

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2020
- Submitted: April 28, 2020
- 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: 86,263 hours, 15,306 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Fuselage
- 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/UIEA2020042800893

## Discrepancy

LH STA 2231 FRAME STR 16L 1 EA HOLE FOUND 2 EA CRACKS AT FRAME STRAP AT 3 O/C POSITION THROUGH THICKNESS AND 6 O/C POSITION APPROX 0.030" DEPTH.(<P>STA 2231 STA 16L-17L FRAME STRAP FASTENER HOLE CRACK AREA REPAIRED IAW RI-53-60-14005 REV. A.</P>)

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