SDR 99ZZZX873

Service difficulty report · Igniter · Cessna 550

Difficulty date
January 22, 1999
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N37201
Make and model
Cessna 550
Aircraft serial
5500655
Engine
Pwa JT15D4
Part
Igniter
Part number
CPW3039828
Condition
Damaged
Location
Engine
Part time
132 hours
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

IGNITERS WERE REMOVED FOR INSPECTION AND CENTER ELECTRODE APPEARED TO BE MISSING ON ONE OF THE IGNITERS. FURTHER INVESTIGATION SHOWED THAT WHEN LEAD WAS REMOVED FROM IGNITER, THE CENTER ELECTRODE WAS LOOSE INSIDE THE IGNITER AND PULLED PARTIALLY OUT CAUSING THE FIRING END TO RECEDE INTO THE IGNITER SHELL GIVING THE APPEARANCE THAT IT WAS MISSING. THERE WAS ALSO WHITE POWDER INSIDE THE END WHERE THE LEAD CONNECTS. THE LEAD WAS NOT FUSED TO THE ELECTRODE AS SEEN IN THE PAST, IT LOOKS LIKE THE CERAMIC WAS NOT BONDED TO THE ELECTRODE AND THE LEAD WAS HOLDING EVERYTHING IN PLACE.

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