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Meaning of manafacturers / inspection stamps.

Hi folks,

I have a small aircraft panel which is stamped with the following marks.

Is anyone able to tell me what they mean, the manufacturers or identify the aircraft the panel was fitted too?

The first marks are R2 344 which is in a circle.

Then it has the number 571635L3 and also AS571635L1 and AS571635L2.

Many thanks,
TEC

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By: Alan Clark - 31st January 2011 at 22:07

No, not all Mk.s of Halifax were prefixed with 57, but as a lot of parts were common you’ll only find the other numbers on items that were specific the the particular Mark.

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By: TailEndCharlie - 31st January 2011 at 21:50

Thanks for all your input guys. Its most interesting to find out where the part was made.

Did the codes for all marks of Halifax begin with “57”?

Ta,
TEC

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By: Alan Clark - 28th January 2011 at 21:03

R2 is Rootes Securities, Speke.

You probably have a part form a Rootes built Halifax, they largely built Mk.V aircraft so it may well be from one of those.

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By: dailee1 - 28th January 2011 at 20:15

There would probably be a batch no somewhere to correlate with any heat teatment etc. During the time when I held an inspection stamp, we were in the process of replacing punches with a vibro-etched numbers to minimise the possibility of fatigue cracks

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By: LW206 - 28th January 2011 at 12:06

’57’ part numbers are Halifax.

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By: Mark12 - 28th January 2011 at 11:53

R2/344 in a circle would conventionally be the identity of the AID or manufacturing inspector who signed the part off.

Mark

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