# SDR 0300346744

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2003
- Submitted: March 3, 2003
- Operation: Air carrier
- Aircraft: N644NW
- Make and model: Boeing 747212F
- Aircraft serial: 644NW
- Aircraft time: 55,297 hours, 9,979 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Web
- Condition: Cracked
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0300346744

## Discrepancy

During "H" check found cracks in #4 pylon rear engine mount outboard forward and aft frame webs. Repaired per EA 67-165042.

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