# SDR 0001866304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2000
- Submitted: May 24, 2000
- Operation: Air carrier
- Aircraft: N664US
- Make and model: Boeing 747451
- Aircraft serial: 23819
- Aircraft time: 45,689 hours, 5,710 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: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0001866304

## Discrepancy

DURING ''''H'''' CHECK, FOUND CRACK ON NR 1 PYLON INBOARD SKIN AT PANEL 452ER CUTOUT, NACELLE STATION 293.  REPAIRED PER EA 63-175731.

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