# SDR UIEA2019082805313

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2019
- Submitted: August 28, 2019
- Operation: Air carrier
- Aircraft: [N445MC](https://openairdocs.org/aircraft/N445MC), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 33515
- Aircraft time: 69,078 hours, 11,719 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Cracked
- Location: Bs 720
- 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/UIEA2019082805313

## Discrepancy

1 EA CRACK WAS FOUND ON BS 720 RH FWD CHANNEL, UPPER RADIUS AREA, APPROX 1/4" IN LENGTH.(<P>CRACK - STA 720 RH TENSION TIE CRACKED CHANNEL REPAIRED IAW SRM 53-20-30-2R-1, REPAIR 1. </P>)

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