# SDR UPS03441501

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2003
- Submitted: November 3, 2003
- Operation: Air carrier
- Aircraft: N523UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 22381
- Aircraft time: 70,791 hours, 14,638 cycles
- System (JASC): [5411 · Nacelle/Pylon, Frame/Spar/Rib](https://openairdocs.org/jasc/5411)
- Part: Frame
- Part number: 65B9041247
- Condition: Cracked
- Location: Nr 3 Pylon
- 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/UPS03441501

## Discrepancy

INSPECTION TYPE: C,  NR 3 PYLON NACELLE REAR ENGINE MOUNT BULKHEAD FRAME CRACK IS FOUND AT FWD AND REAR O/B SIDE.  FOUR EACH MOUNTING FRAME REPAIRED AS PER RS R54-53-35086 AT NR 3 PYLON NACELLE REAR ENGINE MOUNT BULKHEAD AND UPS ENGINEERING FILE 747-54-20042.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.