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Repairs to propeller blades

Old 28th Mar 2018, 02:58
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Question Repairs to propeller blades

I have recently done a fantastic landing that has resulted in bending the blade a bit. In Australia, who are the recommended or approved Hartzell service centres? I kind of need an expert opinion on the matter so it should be an approved MRO right? Anyone got a list of aircraft propeller overhaul companies that are good or recommended?
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Old 28th Mar 2018, 04:28
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What about the engine overhaul following the prop strike?
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Old 28th Mar 2018, 05:23
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Yep, you're probably going to need to have a bulk strip...
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Old 28th Mar 2018, 05:49
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AD/ENG/6
Amdt 1
Propeller Strike 1/94
Applicability: All piston engines which have had a propeller strike.
Requirement: Following a propeller strike, the aircraft shall be inspected to determine whether the
engine has been subjected to abnormal loads and stresses which may have caused
engine external and/or internal mechanical damage.
An engine, which has been subjected to a sudden stoppage and/or propeller damage to
an extent where significant bending or torsional load may have occurred, shall be
considered to have been subjected to abnormal loads and stresses and shall be
removed from service. The engine shall only be returned to service following the
disassembly, inspection, assembly and test of the engine in accordance with the
engine manufacturer's published data.
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Old 28th Mar 2018, 18:53
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1 question and 3 answers that miss the point, RTFQ - come on people. Who's to say the engine inspection isn't in the works and the guy/girl is looking for maintenance on the prop to return it to service
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Old 28th Mar 2018, 19:08
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Originally Posted by V1650 View Post
1 question and 3 answers that miss the point, RTFQ - come on people. Who's to say the engine inspection isn't in the works and the guy/girl is looking for maintenance on the prop to return it to service
Maybe so but if thatís the case, surely the engineer looking at the engine would be the person to ask.
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Old 28th Mar 2018, 21:11
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Get a LAME to look at it, he/she will be able to tell you in a few minutes if you are up for a bulk strip and new prop. There could also be airframe damage.

Also speak with your insurance company as they should foot the bill if the aircraft is insured.

Whatever you do DON’T run the engine as you could cause more damage.
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Old 28th Mar 2018, 21:58
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Yes I am fully aware that the engine will require a bulk strip and I have been recommended a good engine shop. I am more concerned as to where to send the propeller. I would prefer to send it to a recommended service facility rather than leaving it in the hands of the insurance company.
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Old 28th Mar 2018, 23:02
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What about a Rotax 912 with its slipper gearbox clutch? Rebuild?
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Old 28th Mar 2018, 23:07
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Originally Posted by Sunfish View Post
What about a Rotax 912 with its slipper gearbox clutch? Rebuild?
The same applies Sunfish. A light scraping isn't a biggie but what do you think will happen at 3000+ rpm or similar?

There's a good summary of what needs doing here:

AeroFix Aviation - Rotax Service, Rotax Servicing, Rotax Repairs, Jabiru Overhauls
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Old 28th Mar 2018, 23:08
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AD/ENG/6: " to an extent where significant bending or torsional load may have occurred,..........."

Again, CASA is imprecise. If there is ALWAYS a need to inspect, then say so. Research the outcomes of these inspections and if there is a pattern, develop a set of criteria to exclude what constitutes minor damage that is unlikely, at the 99% three sigma limit, to produce damage.
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Old 28th Mar 2018, 23:09
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Thanks Sqawk7700.
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Old 28th Mar 2018, 23:28
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CASA say any damage that needs to be carried out by a prop shop is significant (not a bit of dressing).


Southern Props in SA are good to deal with.


Got a photo of the prop?
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Old 29th Mar 2018, 22:50
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We use both East Coast Props - Bankstown (John) and Propcare - Archerfield (Nigel). Nothing to complain about with either of these organisations.

East Coast has been more expensive for quoted jobs on repairs but cheaper for the outright purchase of a new prop.
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Old 30th Mar 2018, 02:13
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I have heard that there are two in Bankstown. One really good and the other not so good. Not so concerned about the quote although I heard that if you go directly to the MRO it will be cheaper than an FBO. Someone told me that the other shop in Bankstown is a bit dodgy in terms of workmanship so I am reluctant about the 50 50 chances of calling the wrong shop but if you recommend East Coast I will probably give them a ring and see what they say.
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Old 30th Mar 2018, 02:39
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Prop dressing...who can do it ?

If you have landed a dirt/ gravel strip far out in the boondocks, and get a bad ding in the blade leading edge...who can dress it out.?
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Old 30th Mar 2018, 02:54
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Originally Posted by aroa View Post
Prop dressing...who can do it ?

If you have landed a dirt/ gravel strip far out in the boondocks, and get a bad ding in the blade leading edge...who can dress it out.?
Your friendly LAME.
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Old 30th Mar 2018, 07:13
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In the Ag days a file from the loader tool box worked.
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Old 31st Mar 2018, 02:18
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So you have someone doing the engine, finding a prop shop for the prop.


Who is removing/refitting the engine and prop?


A third entity?


This is a job I would stay well away from - best find a RMO, let your assessor know that's the one you want.


Then leave it all up to the RMO and the assessor to rectify it.


What will happen if after installation there is a defect with the engine or prop, say an oil leak on the crankcase that requires removal again?


If you arrange it the engine shop says fine we will fix the leak for free, just send the engine back. You can be up for removal/install costs and freight if applicable.


If the RMO arranges it even with your preferred engine shop, they will have a mark up that will cover this event and it is very clear where you go to get it fixed - the RMO.
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Old 31st Mar 2018, 11:37
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Ah yes fujii...but you are in the boonies and the nearest friendly lame is 1000 miles away.
What then ?

While I concur with the Ag Days and the practical aspects..having had to do it in the past ...of course its the dichotomy? between the practical and the criminal.
The CAsA way of thinking, Strict liability and all that, criminal offence etc.

Since the PIC is supposed to be ultimately responsible for the safety of the flight,,? what then ?
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