# SDR UPS502977

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N409UP](https://openairdocs.org/aircraft/N409UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23731
- System (JASC): [5415 · Nacelle/Pylon, Attach Fittings](https://openairdocs.org/jasc/5415)
- Part: Fuse Pin
- Part number: 311N52171
- Condition: Cracked
- Location: Nr 2 Engine
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS502977

## Discrepancy

WHILE IN 'C' CHECK, MAINTENANCE PERFORMED INSPECTION OF FUSE PIN P/N 311N5217-1 PER SB 757-54A0019R5 ON P AND W AIRCRAFT.  FOUND PIN TO BE CRACKED.  REPLACED FUSE PIN PER UPS EO B757-5440-0431-H.

---
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.