# SDR UIEA2025122001355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2025
- Submitted: December 22, 2025
- Operation: Air carrier
- Aircraft: [N476MC](https://openairdocs.org/aircraft/N476MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29256
- Aircraft time: 103,250 hours, 18,818 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 65B0188730
- Condition: Cracked
- Location: Zone 100
- 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/UIEA2025122001355

## Discrepancy

FOUND 1 INCH LENGTH CRACK ON RH LONGERON BOX FRAME (PN: 65B15001-80) REPAIRED PER EA 4453A258 PART 1, REQUIRE TO PERFORM REPEAT INSPECTION PER EA 4453A258 PART 2. (14340)(<P>WHEN ACCOMPLISHED REPEAT INSPECTION PER EA 4453A258 PART 2, FOUND CRACK ON CLIP  AND REPAIRED CLIP #30 AT STA 1372 WL152 IAW B747-400 SRM 51-70-11-0G-0 FIG 1 AND ENGINEERING MESSAGE EO #4453C602. NO FURTHER DEFECTS NOTED.

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