Missing 337 form

[SuperPilot]

Hey guys still going through annual been down for over a month ughhhh. Anyway everything is finished on it but have run into a roadblock, the air/oil separator doesn't seem to have a logbook entry nor the 337 form. This is my first time having an annual done. Any input on how to get the major alteration form?  

[KSMooniac]

You can see if the 337 was ever filed with the FAA and get a copy there, but if it isn't in the logbook then there is a good chance it was never filed.  What brand is it?  M-20 has disappeared best I can tell, so you might just have to take it off.  If it is an Airwolf or other perhaps you can get new paperwork and file it.

[N601RX]

Do some reading on the separator and some of the reports of them returning moisture to the crankcase. You may decide to remove it.

[Alan Fox]

Figure out what brand it is , look it up in the FAA STC list online , print it out and use it...... A little hokey , but should work....

[jwilkins]

It is my understanding some models came from the factory with a separator. I'd first check to verify yours was a aftermarket add-on, then check to see if it was a factory option. If the supplier is out of business you could ask your mechanic to submit a 337 listing 'inspection of previous installation'. It probably won't get approved but it may. You'll need the installation instructions and ICA, but I'm sure someone on here will have the records to assist your mechanic on whatever brand you have installed.

 

I've never had ANY luck with going back to former shops and mechanics who didn't do the paperwork properly; missing 337's and "see A/C records for new W&B" when there was none in the paperwork are always met with a 'Sorry, we don't have records for that' - even at a Repair Station where you know the records are on file.

 

I like my separator; it keeps the belly cleaner and returns oil to the engine which would otherwise be lost. On a long trip my oil level will go up a pint or even a quart after sitting overnight compared with the initial after trip hot check. Planes

I've flown without a separator didn't recover nearly as much.  

 

Maybe the dry Arizona air is a better environment for a separator than one of the more humid areas of the country; but I like having it.

 

When I bought 1MS there was an old AM /FM radio and a Motorola SAT phone interface installed; both were aviation TSO products but not in the logs. I sent for the FAA records and found there were no 337's on file. I had both of them removed by the shop who made a log book entry along the lines of 'XX removed; installation not found in logbooks'.

 

Sometimes I wish I had a homebuilt........

[Guest]

Missing paper work is not all that uncommon. When we import an airplane from the US with missing paperwork we track down the STC, installation instructions and reinspect the system to make sure it complies. Once sure that it does we fill out the equivalent Transport Canada form amend the W&B and make a log entry if needed.

Your A&P should be able to do the same for you.

Clarence