# SDR 06013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2006
- Submitted: February 21, 2006
- Operation: Air carrier
- Aircraft: [N706CK](https://openairdocs.org/aircraft/N706CK), registered now
- Make and model: Boeing 747249F
- Aircraft serial: 21827
- Aircraft time: 70,414 hours, 17,863 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- Condition: Chafed
- Location: Nacelle
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/06013

## Discrepancy

REAR ENGINE MOUNT BULKHEAD WEB CHAFED AROUND HYDRAULIC UNION, NAC STA 221.90.  REMOVED REPAIR AREA FASTENERS AND DAMAGED MATERIAL IAW B747 SRM 54-14-03.  FABRICATED 4 X 9 INCH DOUBLER IAW B747 SRM 54-14-13 FIG 16.

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