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Warbird News & Events

Stay up to date with the latest warbird related news and events.

Yak Props

AWAL has approved a change to the retirement life/overhaul life of V530 propeller blades fitted to some Yak 52 and Yak 18T aircraft.

The 30 year retirement life for the original wooden blades has been removed and replaced with a 10year/ 500hr overhaul life via AWAL EB 20-001.

There has also been a minor change to AWAL EB 18-002v3 Prop Calendar Overhaul covering these changes.

AWAL EB20-001 30 year Retirement of V530 Propeller Blades

AWAL EB18-002v3 Propeller Calendar Overhaul Life

Carbon Monoxide

CASA has released some advisory information regarding Carbon Monoxide Poisoning. Please have a read and talk to your Maintenance provider

The exhaust collector assemblies on piston powered aircraft are a known source of CO. Manufacturer’s instructions for continued airworthiness (ICA) require regular inspection of exhaust pipe collectors and heat exchangers. Their useable life is centered on an “on condition” maintenance inspection philosophy and as such requires increased vigilance with ageing exhaust components.

‘On-condition’ – ‘On-condition’ maintenance means an inspection/functional check that determines an item’s performance and may result in the removal of an item before it fails in service. It is not a philosophy of fit until failure or fit and forget. The process of ‘on-condition’ maintenance is applied to items on which a determination of their continued airworthiness can be made by visual inspection, measurements, tests or other means without disassembly inspection or overhaul. The condition of an item is monitored either continuously or at specified periods. The item’s performance is compared to an appropriate standard to determine if it can continue in service

CASA AWB 02-064

Merlin Engine MPD

The UK CAA has released a Mandatory Permit Directive for Rolls Royce/Packard Merlin engines with regards to camshaft failures and camshaft bracket studs being loose.

AWAL recommends you ask your Maintenance Org to inspect those engines in-line with the MPD compliance requirements

MPD 2020-002

Yak 50/52 Fuel Primer Use

The CAA UK has release a Safety Notice on the use of the engine fuel primer after a fuel system/pump malfunction or failure. Please have a read, it may save your life one day.

CAA UK Safety Notice 2019-004

Check your belts

The CAA UK has recently released a ‘Safety Notice’ regarding Seat Belt condition in GA aircraft including Historic and Warbird types. They make note of a Yak52 crash where a life was possibly lost due to deteriated seat belt webbing.

If your black webbing is looking very purple or it looks like a cashmire sweater then they probably need changing. Please get your Maint Org to have a good look at them.

CAA UK SafetyNotice2019003

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