SDR 2012F00140

Service difficulty report · Spark Plug

Difficulty date
July 20, 2012
Submitted
July 23, 2012
Operation
General aviation
Engine
Lyc LTIO540J2BD
Part
Spark Plug
Part number
RHB32E
Condition
Mismanufactured
Location
Engine
Part time
97 hours
Stage of operation
CL
How discovered
O
Nature of condition
R
Precautionary procedure
A

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

What was found

INSTALLED NEW CRHB32E MASS ELECTRODE PLUGS 96.7 HOURS AGO. WHEN DIAGNOSING A ROUGH CLIMB POWER FOUND: 6 PLUGS WITH NO CONTINUITY. THE OTHER 6 MEASURED 1.424K OHMS, 1.266K OHMS, 1.394K OHMS, 1.427K OHMS, 1.123K OHMS, 2.166K OHMS. OF THOSE 6 PLUGS, 3 WERE FOUND TO INTERMITTENTLY FIRE AT CORRECT PSI BUT CONTINUOUS UNDER AT 80PSI AND UNDER.