# SDR DALA13026656301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2013
- Submitted: June 3, 2013
- Operation: Air carrier
- Aircraft: [N661US](https://openairdocs.org/aircraft/N661US), registered now
- Make and model: Boeing 747451
- Aircraft serial: 23719
- Aircraft time: 98,911 hours, 13,074 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- Condition: Damaged
- Location: Nr 4 Nacelle
- 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/DALA13026656301

## Discrepancy

NR 4 ENGINE PYLON BULKHEAD HAS SEVERAL SHEARED FASTENERS. REPAIRED IAW ERA 515110-14, REV ORIG PERMANENT REPAIR

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