# SDR 4510104102005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2005
- Submitted: April 22, 2005
- Operation: Air carrier
- Aircraft: [N410FX](https://openairdocs.org/aircraft/N410FX), registered now
- Make and model: Lear 45LEAR
- Aircraft serial: 101
- Aircraft time: 3,843 hours, 2,903 cycles
- Engine: Alidsg TPE331201A
- Engine time: 3,477 hours, 2,613 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Condition: Leaking
- Location: Hyd Sys
- Stage of operation: AP
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4510104102005

## Discrepancy

THE PILOT REPORTED HE WAS ABOUT 3 TO 4 MILES OUT WHEN FIRE INDICATION APPEARED.  DIDN'T DISCHARGE A BOTTLE OR SHUTDOWN THE ENGINE.  AFTER CLEARING THE RUNWAY, THE INDICATION EXTINGUISHED ABOUT 1 MINUTE AFTER THE ENGINE WAS SHUTDOWN.  AFTER DEPLANING THEY SAW HYD FLUID DRIPPING FROM THE COWLING.  DIDN'T GET A HYD PUMP FAILURE INDICATION, BUT HE DID GET A HYD LOW CAS SHORTLY AFTER LANDING.  MAINTENANCE FOUND THE ALTERNATOR WIRING HARNESS HAD CHAFED A PINPOINT HOLE IN THE EDP HYD PRESSURE LINE.  THIS CAUSED A HIGH PRESSURE MIST OF 5606 TO SPRAY ON HARNESS.  SPRAY IGNITED, MELTING THE HARNESS AND CLAMPS IN THE IMMEDIATE AREA.  LOANER ENGINE INSTALLED ON AIRCRAFT.  MFG IS DEVELOPING A SERVICE BULLETIN TO ADD CLAMPS

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