Aircraft Inspection

The mechanics did not want to have an inspection entered into the maintenance logbooks, because they thought it would be a red flag to the DGCA. As instructors and pilots, we felt the inspection should be recorded not only as a record of the history of the aircraft, but to conform to the terms of the aircraft warranty agreement. In the end, the only issue Edmond was concerned about was stalls.



Paul,

The HSA gaves us a funny indication today, The entire HSA was flickering above 47%.  Do you have any ideas?  I thought maybe the HSA connection was loose.

Also can you get me the inspection list for a post spin possible over G situation... My student kicked the rudder while holding the  stick full back during a power off stall and we entered an "Over-the-top" Spin entry.

Denis

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Hi Paul,

On the HSA it may possibly be a loose connection, have a look at the maintenance manual trouble shooting section 77. please make sure that the service documents associated with the HSA have also been addressed. These are available from the Liberty technical publications website.

As there may potentially be an over 'g' situation noted below, we will need some more data. We'd recommend that he perform the hard landing inspection for a start. This is located within the aircraft maintenance manual. Also check to make sure that the wing and wing and fuselage attachments are fixed with no freeplay, check for any additional flight
control surface and wing surface oil canning on the ground that was not noticed before. See the maintenance manual chapter for details on the wings.

Check the flight control pushrods, brackets and idler bellcranks for permanent deformation or freeplay, check the tailplane for cross ship trueness and attachment. Inspect all the items required by chapters 4 and 5 that would be applied to the aircraft during an annual inspection, including the composite structural aspects. Have a look at the rudder to see if it has been overswung to hit the horizontal stabilizer. Have a look at all the composite structure areas that attach the control circuits to the pushrods for cracks in the carbon. You will be able to see the tan core
underneath if that is the case. Check the windshield for windshield attachment fastener cracks, and, if the flaps were deployed, check the steel flap drive in the chassis for straightness by applying a straight
edge to it vertically and laterally across the ship. The flapped maneuver load limit is +2.0g, clean this is +3.8g.

Please have him look at these first and report back.
Thanks
Jason

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To All,

Here is a condensed version on a single email so we can all keep track.

Russell the CFI will be back in town tomorrow and I have CC'd him on this email so he will be up to speed with the situation.  He will also be able to perform the test flight as he is the company test pilot.

Paul,

Andri our engineer has completed the engine diagnostic for the aircraft and found the #3 cylider fuel injector clogged.  We know this does not have anything to do with the hsa flickering but it is a start.  When I perform the post maintenance test flight using the liberty test flight check list I will at that time check the HSA while close to the airport.

Andri has also just completed the Preliminary Hard Landing Inspection as required by Jason from Liberty.  All was found to be good to go. The wings were not pulled as it was not in the inspection.  Any other checks or inspections please advise so we can all work together and verify that the aircraft is safe for flight.  I also need approval from
Management that I can perform the test flight as described in the checklist.

Regards
Denis

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Paul

I asked in the email for them to do an annual inspection. This requires the wings to be pulled for inspection. The inspection needs to be extensive to ensure that there is no hidden damage, in our opinion.

Jason

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HB,

Please note from Jason's reply below that the check on LLB must be done as an Annual Check which includes pulling out the Wings and inspect.

I know we need a Barfield Pitot Static Leakage Tester to check after the wings are pulled out.

I am working with Paul to find one immediately from US and have it couriered over.
Meanwhile, can you check if there is any in Indonesia that we can borrow or rent?


To All Instructors,

No more argument of FULL STALL RECOVERY Practice.
It is prohibited until in CPL stage or until our simulator arrives in end January when we can practice it to perfection in our simulator before trying out in our planes.
I do not want this incidence to repeat again.

Regards,
Edmond.