# SDR UPS07450027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 8, 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): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Structure
- Part number: 65B018357
- 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/UPS07450027

## Discrepancy

INSPECTION TYPE:C CRACK FOUND AT 1EA FASTENER HOLE BELOW STR 15ER AT BS 420 AFT INNER CHORD (P/N: 65B01835-7) THROUGH THICKNESS CRACK 0.040 INCH LONG RUNNING O/B AT 3 O`CLOCK POSITION (LOOKING FWD).  CABIN BS 420 FRAME ATTACH INNER CHORD BETWEEN STR 10AR TO STR 16R REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02.

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