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Hello Everyone, 

My aircraft has a 915iS with only 60 hours total since it was certified on 12/2021. 

In the last few months, I have been getting all sorts of Lane A or B warnings. The warning will normally clear once I cycle the lane switches.  One of the faults for Lane A was a warning with an ignition coil 2 fault. I was told that because the OAT was above 100 degrees in SoCal, the coils were overheating and failing.  To fix the issue, all the coils were wrapped with insulation material and the problem went away.   

While flying today, the Lane B warning light came on. The Dynon panel showed an ”X” on the Fuel Flow, Oil Pressure, and Oil Temp display.  I landed the AC immediately.  The engine display menu had a fault warning “LANE A STATUS – NO DATA RX FROM OP LANE.” On the ground, I cycled the Lane B switch, and it did not clear the fault. I cycled the Lane A switch and the engine shut off immediately. The engine was only running on Lane A. BTW, the OAT was over 104 Fahrenheit again. 

Any Suggestions or Help? 

Note: I have contacted Lockwood Aviation to purchase a BUDS Connector but they are out of stock. 

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  • Re: Complete Lane B Failure

    by » 3 months ago


    Everyone,

    After completing an inspection of all the connectors and wiring harness from the engine to the EMS, I found the second round twist plug at the fuse box to be coming off.  It was just hanging on to the fuse box not locked in place with the turn locking mechanism.   Completed an engine run-up and the warning or fault did not come up again.  I will take it up for a flight once the temperature cool off here in SoCal.

    Thanks,

    Emmanuel

     

     

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    33719_2_20220905_113343.jpg (You do not have access to download this file.)

  • Re: Complete Lane B Failure

    by » 3 months ago


    Emmanuel,

    The coupling ring on that connector is easily damaged if any tool is used to turn it.  When locking the ring it should turn easily by hand and reach a positive stop where a locking detent can be felt. I’ve seen where one of the two cam tabs on the inside of the coupling ring have broken off, so the ring does not lock properly.  If that happens, the coupling ring can be easily replaced without replacing the connector body.  I believe this is the same part as on the 912iS, which is a TE Connectivity/AMP, part number 213810-1.  Replacement is easy, just cut off the old ring with diagonal cutting pliers, then push the new ring on until it snaps in the retaining groove. 


    Thank you said by: RotaxOwner Admin

  • Re: Complete Lane B Failure

    by » 3 months ago


    Thanks for the reply.  

    The coupling rings were inspected and the two tabs are not damaged.  

    I am still going to get a replacement and keep on inspecting the connectors during Pre-flight.

    Thanks,

    Emmanuel

     


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