SilverHammer

They're still used and not uncommon in aerobatic aircraft. Most American Champion aircraft like the Citabria and Decathlon and Scout have them, but with a safety wire...

Or a sensible offer!

And if you look a little further... AU$7.64 AU$9.91-23% 5+ pieces, extra 5% off Set Gel Ear Seals Ear Pads with Mic Foam Cover for David Clark H10 Series,ATH-50x,Rugged,ASA Telex 25xt Pilot Aviation Headset

Pity you didn't look at the Google search I mentioned, usually less than $20, Aliexpress has them for: AU$3.29 AU$4.28-23% 5+ pieces, extra 5% off Gel Ear Seals Ear Pads for David Clark H10 Series Headsets, ATH-50x,Rugged, Faro, ASA Telex 25xt Pilot Aviation Headsets

Google aviation headset gel cushions. Most of the David Clarke style cushions seem to be interchangeable, I've successfully refurbished Sigtronics, Altronic and Avcom headsets with them. Have a look through www.headsetsinc.com to get an idea of other available bits and pieces.

Skycraft in the UK, and there's another. Try using Google.

2007 J230D brakes replaced with the MK3 upgrade in September 2022. Original brake cylinders and discs corroded. Jabiru offered a discounted upgrade kit as an alternative to replacing parts. The kit went on relatively easily, adequate instructions and illustrations were available, but not in one place. Much better and simpler design, performs better. Care was needed to minimise piston travel when installing . Non genuine stainless disks are available, and if operating coastal, I would consider these. Max.

As a retired ex metallurgist I simply can't resist adding my ten cents worth... The two most common types of stainless steel are ferritic, which is magnetic, and austenitic, which is not (there are 5 main types, based on crystal structure). Austenitic stainless has a higher nickel content and is more corrosion resistant. One example is 18/8 or AISI grade 304, others are grades 302, 303, 316, 32, 347, & 348. Happily, Bunnings Aerospace division has fasteners in 316, as do boating suppliers. Check with a magnet, I doubt many Chinese fasteners are true to label. Now, the avoidance of magnetic fasteners is to prevent affecting the calibration of the compass, the primary navigation instrument until the late 70's. With local flying, the use of GPS and moving maps, accuracy isn't as vital, and seeing many ultralights with rudimentary compasses and no correction card, probably only of academic interest. With Danny's 20 screws, if a manufacturer uses them, they are probably OK, and if not, the compass could have been adjusted to compensate for them. The main issue is not to inadvertently disturb any calibration that has been done. Painting stainless isn't difficult. Degrease with acetone, sand lightly, prime first. Rattle can enamels are fine indoors.

They do. After 10 years in service a GA engine can still pass its annual inspection 'on condition', usually if its within TBO. Not for some categories like charter.

oops. The Flickr URL in my post was an attempt to embed another image from the 70's. It can be cut and pasted into your browser.

http://farm6.static.flickr.com/5085/5234815332_704b0485c9.jpg In 1981, before Yulara (AYQ) airport was commissioned in 1985, the Ayres Rock strip was adjacent to the Rock. On google maps satellite view, it is still visible about 600m to the NE. I was there with a C182 in August 1981, it was quite busy, traffic control was see and be seen, although circuit direction and height around the Rock and to and from the Olgas was specified but often ignored. The terminal facilities were non existent.

Sorry, I can't recall the depth the lens was embedded, I just cut and peeled the plastic tub away, using a dremel.

I dissected a failed one from my J230D. The LEDs were OK, if you could just get the potting compound off the electronics........