# SDR 0602456623

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2006
- Submitted: November 20, 2006
- Operation: Air carrier
- Aircraft: N623US
- Make and model: Boeing 747251B
- Aircraft serial: 21705
- Aircraft time: 97,838 hours, 16,923 cycles
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Condition: Cracked
- Location: Nr 3 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/0602456623

## Discrepancy

DURING "L" CHECK, FOUND NR 3 PYLON DOUBLER SKIN CRACKED AT BS 180 BULKHEAD CUTOUT.  REPAIRED PER EA 66-208301.

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