# SDR 95ZZZX4288

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N400RG](https://openairdocs.org/aircraft/N400RG), registered now
- Make and model: Boeing 727-22
- Registry model: [Boeing 727-22](https://openairdocs.org/model/boeing-727-22) (OpenAirDocs)
- Aircraft serial: 19149
- Engine: Pwa JT8D7B
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Sense Line
- Part number: 451077
- Condition: Broken
- Location: Nr 3 Engine
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX4288

## Discrepancy

DURING CRUISE, NR 3 ENGINE'S FUEL FLOW AND EGT BEGAN TO CLIMB WITH LOWER RPM'S AT SAME THROTTLE SETTING AS NR 1 AND NR 2 ENGINES.  OK, PRESSURE GOOD, NO VIBRATION NOTED.  REDUCED POWER TO IDLE FOR ABOUT 1.50 HOURS, INBOUND TO EWR.  FOUND 13TH STAGE AIR PRESSURE SENSE LINE BROKEN AT 13TH STAGE SADDLE DUCT.  LINE BROKE AT FERRULE TO TUBE WELD JUNCTION, SUSPECT CAUSE - VIBRATION.

---
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.