SB-11 Sealing of Blade Assemblies > Airmaster Propellers

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SB-11 Sealing of Blade Assemblies

SB-11 Sealing of Blade Assemblies

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Step1 – Assess the damage

Step 2 – Contact Airmaster.

Step 3 – Prepare propeller for shipment.

Step 4 – Select shippment method

Package Dimensions and Weights

Box A Hub and spinner

Propeller At Fine Pitch Stop

Constant Speed Governing

Propeller At Coarse Pitch Stop

Over current

Step 2 – Information Collection

Step 3 – Order Generation

( Service Bulletins, 11 October 2002)

Date of Issue	11 Oct 2002
Applicability	Propeller Models	AP332
Applicability	Serial Numbers	All serials up to 188
Compliance	Initial	At next Periodic Inspection
Compliance	Subsequent	Nil

Subject: Sealing of Blade Assemblies to Prevent Water Ingress into hub

Reason

1. Airmaster AP332 propellers may suffer from water ingress while the propeller is stationary. Water, such as that from rain, is known to be able to enter the blade assembly through the annular gap between the shank of the Warp Drive blade and the ferrule nut. The water then passes down the two gaps between the blade retention sleeves and enters a cavity enclosed by the blade, the blade ferrule and the cam-follower attachment spigot. From this cavity water is able to enter the propeller hub, primarily by passing through the hole for the small spring-pin that retains the cam-follower stud.

2. This service bulletin addresses sealing of this blade cavity and the paths that allow movement of water from the cavity to the propeller hub.

APL-SB-11 Sealing of Blade Assemblies.pdf

Returning your propeller for Factory Repair In the unfortunate event that you have a ground strike with your propeller, you will need to return it to us for repair. These are the suggested steps you should follow.
Step1 – Assess the damage Remove the propeller from the aircraft but leave the blade retention components attached to the hub. Take a note of which components have been affected by the ground strike. Obviously the blades will be affected but there is also the spinner, spinner support and slipring to consider.
Step 2 – Contact Airmaster. Send us a quick email explaining what has happened. We will assist with any part that you are unsure of.
Step 3 – Prepare propeller for shipment. Cut off the blades at the root of the blade ~1in from the ferrule. This will reduce the cost of returning the propeller by making it more compact. Consider which parts you want returned for assesment and or upgrading. You may wish to return the controller and brushblock / loom for example, to have them upgraded to the latest software and hardware versions. Generally we do not recommend returning the spinner if it is undammaged as it can easily be damaged in trasit. Make a note as to whether it requires replacement.
Step 4 – Select shippment method We recommend you use UPS, FedEx or other similar couriers 25kg box services for returning the propeller. These boxes are very sturdy and have a reduced shipping rate due to thier uniform size. Make sure the parts are packed with sufficient packaging to prevent further damage during transit.
Step 5 - Shipping Documentation You will be required to generate a comercial invoice to travel with the propeller. If you are sending with a courier company, they will provide you with one of these. Please state the value of the propeller as a damaged item. This would generally be ~USD2000 or less.
Step 6 - Airmaster Assessment We will make a full assessment of the propeller then ask for your approval to carry out the work as we will describe. You will have the opportunity to discuss your options and make your choice of what upgrades you would like.
Step 7- Repair With the assessment confirmed, Airmaster will repair your propeller as requested. This part of the process takes ~2 weeks. Although the main components are held in stock, since each propeller is a unique combination of hub, blades, spinner etc, each propeller must be finally assembled to the specific customer requirements.
Step - 8 Invoice As the propeller nears completion, Airmaster will issue you with an invoice for payment. This may be made by international bank transfer or credit card. There will be instructions on how to do this printed on the invoice as shown.
Step - 9 Shipping Once funds are recieved, your propeller will be shipped by UPS courier to your door. This will take 2-5 days depending on your region. The delivery process can be tracked on the UPS web site. http://www.ups.com/tracking/tracking.html You should also recieve automatically updates from UPS at the email address you provided on your order from.
Step - 10 Customs In some countries there may be additional fees to pay to the relevant authorities (local taxes or import duties). This can usually be arranged through UPS but you may wish to check your particular situation here. We will state on the invoice that travels with the propeller 'return' (after repair) and place a value on it that is equal to the repair cost. Sometimes your local customs will issue you with a clearance number when you export the propeller (to us). Make sure we know to state this number on the commercial invoice when we return it to minimise your tax liability.

How to order an Airmaster Propeller Step 1 – Preliminary Enquiry Email or Call Airmaster propellers (or a registered reseller) and outline what aircraft and engine you have, and what you want to achieve be use of the propeller. We will let you know what options we can offer and what benefits you can expect.
Step 2 – Information Collection Provide your details for us to fill out an order request. Typically we will want to know your contact details, delivery details, aircraft and engine details and the type of propeller you have chosen. We have a form that can help in the collection of this information.
Step 3 – Order Generation Airmaster will take the information you have provided and make up an official order for you. This will lay out clearly all the details of what has been ordered, how much it will cost and where it will be delivered to. You will also be given an estimated shipping date.
Step 4 - Order Confirmation Once you have checked that the details on the order are correct (address etc), sign and fax the order confirmation back to Airmaster. Our fax number is +64 9 833 1796
Step - 5 Production With the order confirmed, Airmaster will create your propeller as requested. This part of the process takes ~2 weeks. Although the main components are held in stock, since each propeller is a unique combination of hub, blades, spinner etc, each propeller must be finally assembled to the specific customer requirements.
Step - 6 Invoice As the propeller nears completion, Airmaster will issue you with an invoice for payment. This may be made by international bank transfer. There will be instructions on how to do this printed on the invoice as shown.
Step - 7 Shipping Once funds are recieved, your propeller will be shipped by UPS courier to your door. This will take 2-5 days depending on your region. The delivery process can be tracked on the UPS web site. http://www.ups.com/tracking/tracking.html You should also recieve automatically updates from UPS at the email address you provided on your order from.
Step - 8 Recieving The delivery service used is a full service, so delivery has been arranged to your door. In some countries there may be additional fees to pay to the relevant authorities (local taxes or import duties). This can usually be arranged through UPS but you may wish to check your particular situation here.

Package Dimensions and Weights

The propeller system is packaged in two sturdy boxes.

Box A measures 21.2 x 17.7 x 13.8 in (54 x 45 x 35 cm), and weighs ~ 24lb (11kg) [40lb (18kg) volumetric].

Box B measures 40 x 10 x 6 in (100 x 25 x 15 cm), and weighs ~ 16 lb (7.5kg).

Actual weights will vary depending on propeller type and options included.

Box A Hub and spinner

The hub and spinner are assembled and securely mounted to a base plate.

This plate is held in postion within the outer box to protect the spinner and hub from any possible intrusion or damage.

It is recommeded that this packaging be saved and re-used any time the propeller is transported off the aircraft.

Box A Control system and hardware.

Neatly stacked on top of the spacers surrounding the hub and spinner, is a tray containing the remaining control and hardware parts.

Each group is contained in a protective bubble bag.

Underneath the electrical parts (on the right) is the manual, log book, packing slips and any other documentation.

Box B Blade assemblies

The blade assemblies are individually wrapped in protective card rings and bubble sheet, then securely packed in the blade box.

Inventory

Your Airmaster propeller has be carefully tested and packed proir to shipping.

We suggest you take the time to familiarise yourself with the parts when they arrive, and check each one against the supplied packing slip.

If you are not sure of the parts identification, or have any concerns about the inclusion or condition of parts supplied, please contact us immediately so we can assist.