# SDR KCSA061236

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2006
- Submitted: July 24, 2006
- Operation: Air carrier
- Aircraft: [N706CK](https://openairdocs.org/aircraft/N706CK), registered now
- Make and model: Boeing 747249F
- Aircraft serial: 21827
- Aircraft time: 71,313 hours, 18,048 cycles
- System (JASC): [5411 · Nacelle/Pylon, Frame/Spar/Rib](https://openairdocs.org/jasc/5411)
- Part: Frame
- Condition: Cracked
- Location: Nr 4 Pylon
- 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/KCSA061236

## Discrepancy

NR 4 PYLON NAC STA 221.9 AFT ENG MOUNT BULKHEAD JUST OB OF UPPER SPAR HAS STOP DRILLED CRACK IN HORSESHOE FRAME

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