# SDR UPS07450022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2007
- Submitted: June 25, 2007
- Operation: Air carrier
- Aircraft: N520UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21943
- Aircraft time: 83,127 hours, 18,423 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Doubler
- Part number: 65B0173780
- Condition: Cracked
- Location: Fuselage
- 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/UPS07450022

## Discrepancy

INSPECTION TYPE:C THROUGH THICKNESS CRACK FOUND AT BS 880 STR 9R TENSION TIE AT NR 10 FASTENER HOLE OF FRAME DOUBLER THE CRACK RUNNING AT UPWARD DIRECTION (CRACK LENGTH .25 INCH).  M/DECK BS 880 RIGHT STR 9R FRAME ATTACH DOUBLER REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02.

---
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.