# SDR UPS03440611

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2003
- Submitted: April 30, 2003
- Operation: Air carrier
- Aircraft: N681UP
- Make and model: Boeing 747121
- Aircraft serial: 19661
- Aircraft time: 100,611 hours, 25,820 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- 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/UPS03440611

## Discrepancy

INSPECTION TYPE: C,  NR 3 PYLON REAR ENGINE MOUNT BULKHEAD AFT FRAME FOUND CRACKED AT 4 O/C POSITION ( LOOKING FORWARD ).     NR 3 PYLON REAR ENGINE MOUNT BULKHEAD REPAIRED AS PER HX RS R54-53-35008 AND UPS REPAIR AUTHORIZATION 747-54-20034 DVI AND HFEC INSPECTIONS TO CONTINUE PER UPS EO B747-5410-13908 IAW SB 747-54A2202.

---
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.