# SDR UIEA2019042604019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2019
- Submitted: April 27, 2019
- Operation: Air carrier
- Aircraft: [N493MC](https://openairdocs.org/aircraft/N493MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29254
- Aircraft time: 84,579 hours, 13,591 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Structure
- Condition: Cracked
- Location: Bs 990
- 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/UIEA2019042604019

## Discrepancy

BS 990 S38R-39R CRACK FOUND AT 1EA FASTENER HOLE OF CHORD WHICH COMMON TO BATH TUB LWR FITTING(<P>CAT C REPAIR COMPLETED I.AW RL-53-00-13524 REV B WITH FOLLOW UP ACTION OF CAT A OR B REPAIR OR MODIFICATION TO BE COMPLETED WITHIN 24 MONTHS OR 1,700 FLIGHT CYCLES WHICHEVER COMES FIRST<BR /></P>)

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