# SDR 0001536718

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2000
- Submitted: May 8, 2000
- Operation: Air carrier
- Aircraft: [N618US](https://openairdocs.org/aircraft/N618US), registered now
- Make and model: Boeing 747251F
- Aircraft serial: 21122
- Aircraft time: 81,429 hours, 20,907 cycles
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- 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/0001536718

## Discrepancy

DURING LINE MAINTENANCE INSPECTION FOUND CRACK IN NR 4 PYLON INBOARD SKIN, SLOT SEAL CUTOUT, NAS STATION 180.  REPAIRED PER EA 67-175573.

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