# SDR UIEA2020081381640

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2020
- Submitted: August 13, 2020
- Operation: Air carrier
- Aircraft: [N486MC](https://openairdocs.org/aircraft/N486MC), registered now
- Make and model: Boeing 747-45EF
- Registry model: [Boeing 747-45EF](https://openairdocs.org/model/boeing-747-45ef) (OpenAirDocs)
- Aircraft serial: 30608
- Aircraft time: 87,779 hours, 15,938 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Cracked
- Location: Bs 840
- 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/UIEA2020081381640

## Discrepancy

1EA THROUGH THICKNESS CRACK WAS FOUND ON THE MARKED HOLE AT THE AFT CHANNEL LAYER ( 2ND LAYER COUNTED FROM FWD ) ON 5 O'CLOCK POSITION ON RH STA 840 TENSION TIE.(<P>REPAIRED AS PER SRM 53-20-30-2R-1 REPAIR 1 FIG 201.</P>)

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