# SDR 061134

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2006
- Submitted: April 13, 2006
- Operation: Air carrier
- Aircraft: [N716CK](https://openairdocs.org/aircraft/N716CK), registered now
- Make and model: Boeing 747122
- Aircraft serial: 19753
- Aircraft time: 90,915 hours, 22,997 cycles
- System (JASC): [5420 · Nacelle/Pylon Miscellaneous Structure](https://openairdocs.org/jasc/5420)
- Part: Stiffener
- 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/061134

## Discrepancy

NR 4 PYLON MID SPAR WEB LOWER SIDE STIFFENER CRACKED AT O/B END IN RADIUS AT NAC STA 231.

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