# SDR EIA2008055

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2008
- Submitted: November 19, 2008
- Operation: Air carrier
- Aircraft: N485EV
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 20712
- Engine: Pwa JT9D7J
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Making Metal
- Location: Nr 2
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EIA2008055

## Discrepancy

DURING CRUISE ENCOUNTERED HEAVY SURGE NR 2 ENG ALONG WITH VIBRATION EPR DROPPED TO BOTTOM OF SCALE EGT REACHED YELLOW BAND, REDUCED POWER TO IDLE, VIBRATION PERSISTED, SHUT NR 2 ENGINE DOWN ENG WINDMILL OIL PRESS AT 28PSI.  ANGLE GEARBOX AND MAIN GEARBOX CHIP DETECTORS REMOVED.  METAL FOUND AT LOWER RT 3.5 BLEED PORT.  REPLACED ENGINE IAW WORK CARD F7201-JT9.  (K)

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