# SDR UIEA2024052800457

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2024
- Submitted: May 29, 2024
- 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: 101,852 hours, 17,980 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Horizontal Stab
- 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/UIEA2024052800457

## Discrepancy

CRACK- LWR CHORD, UPPER CHORD AND WEB, R/H H.S.T TIP CLOSURE RIB, STAB BL 421.5.(<P>1. ACCOMPLISHED WORKSHEET #40372, SRM 55-10-09-2R-132 REV 100 AND EI T2024A55M-1231, REV 1 2. JOB COMPLETED AND CONDITION CHECK NORMAL.</P>)

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