RE: You asked about current aircraft
Starting the SPAM CAN.
Spam Can.
All metal pressurised skin construction.
Opening key external on some variants.
Walkaround.
First start with a gerneral feel around the rim of the can, look for any sharp objects or protuberencies, look for damage to the sides. Check the key is visible and intact (later versions).
Servicing.
If the can has been stored for any length of time a quick wipe of all operating surfaces is advisable.
Operation.
Pre 1957 examples;
Using an opener of the correct type place securly onto the rim of the can. Turn the key clockwise. After several rotations the lid should start to open. Continue until the meat is fully exposed.
After 1957;
Locate key. Placing index finger under key lift and turn to one side. Remove key. Locate small metal tab near rim base at one end of can and pull clear. Insert key and rotate clockwise until lid is removed and meat is exposed.
Recovery from incipient key spin failure.
Some makes of Spam Can have a tendency under excessive loads and torque of the key during opening to depart from the can. If this happens follow instructions for earlier example. Under no circumstances attempt manual recover as injury may occur.
SPAM Ejection proceedure.
Under normal operating conditions inverting of the can should initiate SPAM removal. Sometimes this may fail and manual ejection should be initiated.
Place knife between can side and meat contents. Using a gentle rocking and leavering action prise meat from can using gentle shaking motions.
Disposal.
Spent cans should be disposed of as per the manufacturers instructions.
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