Service difficulty report · Housing · Cessna T182

Difficulty date
June 6, 2025
Submitted
June 12, 2025
Operation
General aviation
Aircraft
N93HB
Make and model
Cessna T182
Aircraft serial
18267768
Engine
Lyc O540L3C5
Engine time
1,088 hours
Propeller
Mcauly B3D32C407
Part
Housing
Part number
EA25000
Condition
Failed
Location
Mag Timing
Stage of operation
CR
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

I HAD THE ELECTROAIR DUAL EIS INSTALLED BY THEIR RECOMMENDED INSTALLER. I HAD 3 NEW SEPARATE MTH (MAG TIMING HOUSING) FAILURES RESULTING IN VERY POOR ENGINE OPERATION. THE 1ST MTH FAILED DUE TO GEARS COMING APART. THE 2ND FROM WHAT THE IA SAID WAS A "FREQUENCY PROBLEM". THE 3RD MTH FAILURE WAS THE GEAR WHEELS WOBBLING AND THE ATTACH NUT LOOSE. ALL OF THESE FAILURES OCCURRED WITHIN THE FIRST 20 HOURS OF OPERATION AFTER INSTALL. THESE MTH ARE SUPPOSE TO LAST 2,000HRS OR TO ENGINE TBO; OBVIOUSLY THERE IS A PROBLEM WITH DESIGN, MANUFACTURING OR SOME OTHER REASON. THERE SHOULD BE AN AD ISSUED IMMEDIATELY. I HAD ANOTHER SHOP INVESTIGATE AND THEY REPLACED THE DEFECTIVE MTH AND FIXED BOTH CRITICAL (SUCH AS A LOOSE EIS 2 BUS BAR) AND NON-CRITICAL ITEMS (SUCH AS PROPERLY SPACING EIS IGNITION LEADS) IT IS VERY DIFFICULT TO FIND SB INFO ON THE ELECTROAIR WEB SITE AND AS OF NOW THEY HAVE NOT RESPONDED TO MY REQUEST FOR ANY SERVICE BULLETINS. I WILL ATTEMPT TO SEND IN 2 PICTURES OF 1ST AND1 VIDEO OF THE MOST RECENT MTH REPLACEMENT. PLEASE FEEL FREE TO CALL ME WITH ANY QUESTIONS.

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