# SDR UIEA200700463

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 24, 2007
- Submitted: December 3, 2007
- Operation: Air carrier
- Aircraft: N524MC
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 21784
- Aircraft time: 95,909 hours, 19,894 cycles
- Engine: Ge CF650E2
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Condition: Cracked
- Location: Nr 4 Nacelle
- 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/UIEA200700463

## Discrepancy

NR 4 PYLON LT SKIN WAS FOUND A CRACK AT THE 483 AL ACCESS PANEL CUTOUT LOWER AFT CORNER.  DEFECTIVE CRACK AREA INTERIM REPAIRED AS PER BOEING MESSAGE NR 1-656345659-3 AND ATLAS XEO NR 54-102307.


---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.