# SDR 0002206739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2000
- Submitted: June 27, 2000
- Operation: Air carrier
- Aircraft: N639US
- Make and model: Boeing 747251F
- Aircraft serial: 23887
- Aircraft time: 50,887 hours, 11,435 cycles
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Condition: Cracked
- Location: Nr 1 Pylon
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0002206739

## Discrepancy

DURING LINE MAINTENANCE INSPECTION FOUND CRACK ON NR 1 PYLON INBOARD SKIN AT SLOT SEAL CUTOUT, NACELLE STATION 180.  REPAIRED PER EA 67-170461.

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