# SDR UPS03441513

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2003
- Submitted: November 3, 2003
- Operation: Air carrier
- Aircraft: N525UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21939
- Aircraft time: 80,338 hours, 15,279 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- Part number: 65B90412
- 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/UPS03441513

## Discrepancy

INSPECTION TYPE: C, NR 3 PYLON REAR MOUNT BULKHEAD FOUND CRACK AT FWD AND AFT WEB (NAC 221 TO 221).  NR 3 PYLON REAR ENG MOUNT BULKHEAD LWR ASSY FRAME WEB INTERIM REPAIR ACCOMPLISHED AS PER RS R54-53-35090 & UPS AUTH 747-54-20043.

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