# SDR UPS02439318

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2002
- Submitted: September 6, 2002
- Operation: Air carrier
- Aircraft: N672UP
- Make and model: Boeing 747123
- Aircraft serial: 20324
- Aircraft time: 68,213 hours, 20,211 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- Condition: Cracked
- 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/UPS02439318

## Discrepancy

INSPECTION TYPE:C CRACKS FOUND ON NR 4 NACELLE STRUT REAR MOUNT FWD AND AFT WEBS.  NR 4 NACELLE STRUT REAR MOUNT BULKHEAD REPAIRED AS PER RS R54-53-34881 & UPS ENGINEERING FILE NUMBER 747-54-20030.

---
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.