When you enter any Boeing-made commercial airliner, there is a badge showing the Boeing logo, the specific aircraft type and derivative (737-7H4 for a 737-700 sold to Southwest Airlines) and some additional information l can not recall.I'd like to know what the badge is called, and what all the information means and see an example photo. Can anyone help?

You r referring to the aircraft data plate (or identification plate). All aircraft r required to have one (not just Boeing aircraft), & it is stamped with the aircraft manufacturer is name, aircraft type & model numbers, date of manufacture, & some additional information as well. l believe airliners r required to display the data plate (and the certificate of airworthiness as well, l think) in the vicinity of the main cabin entryway where it is easily visible.

*Edit* l was incorrect about the location of the data plate. On aircraft manufactured after March 7, 1988 it is required to be permanently affixed to the external fuselage aft of the rear-most door, or on the fuselage near the tail surfaces. On aircraft manufactured prior to that date it can be found inside an entryway as long as it is easily accessible (14 CFR 45.11(a) & (d) http://rgl.faa.gov/REGULATORY_AND_GUIDANCE_LIBRARY%5CRGFAR.NSF/0/7F8112CA74B77B1286256EDF006D6BB5?OpenDocument ) .

What u were looking at is most likely the airworthiness certificate, which is required to be displayed near the cabin or cockpit entrance so that it is legible to passengers & crew (14 CFR 91.203 (b) http://rgl.faa.gov/REGULATORY_AND_GUIDANCE_LIBRARY%5CRGFAR.NSF/0/66D3B72B27064346852566CF0067934D?OpenDocument ).

l should note that l do not see anything prohibiting multiple data plates from being displayed on aircraft (as long as they show the exact same information), so l guess there is no reason why there can not be one in both places.

What u see above the entrance door is an Airworthiness Certificate with the aircraft N-number, make & model, serial number & any exceptions. A standard airworthiness certificate (FAA form 8100-2 displayed in the aircraft) is the FAA is official authorization allowing for the operation of type certificated aircraft in the following categories:
1.Normal
2.Utility
3.Acrobatic
4.Commuter
5.Transport
6.Manned free balloons
7.Special classes

A standard airworthiness certificate remains valid as long as the aircraft meets its approved type design, is in a condition for safe operation & maintenance, preventative maintenance, & alterations r performed in accordance with 14 CFR parts 21, 43, & 91.

On some model there is also a aircraft data plate with type certificate number (T/C), production certificate (P/C), serial number & make model.

l believe you are totally incorrect. When you enter an aircraft, normally via a jetway, the only thing you may see is part of the aircraft skin. Definitely no identity legend. Whoever told you that has never done a commercial flight. Prove me wrong that what you say is customary and l will give you one thousand dollars.

Wow, no details get past you! It sounds like u r referring to the manufacturer data plate, which includes the aircraft make, model & serial number. It may also include other information, such as manufacturing date. l could not find any official information confirming the location of the data plate, but several forums confirm that Boeing mounts the data plate in the L1 door frame, meaning the front left door, which is the main entry door on most planes.

l could not find any pictures of Boeing data plates specifically, but if u search for airplane data plate, u should find examples from other airplanes.

Somebody owes Stacheair 1K, although l dont think what the Op was describing is the Air worthiness Certificate,(because of the Boeing Logo) What Stachair says is correct. It is mandated by the FAA that the Certificate be displayed in a conspicuous location such that a passenger entering can see it
Once u step off the jetway into the aircraft u will see it on a bulkhead very close to the door..
In my four seater plane, it is in a see through plastic pouch on the back of the pilots seat.



Federal Aviation Regulation
Part 91 GENERAL OPERATING AND FLIGHT RULES
Subpart C--Equipment, Instrument, & Certificate Requirements

Sec. 91.203

Civil aircraft: Certifications required.

(a) Except as provided in Sec. 91.715, no person may operate a civil aircraft unless it has within it the following:
(1) An appropriate & current airworthiness certificate.

*********(b) No person may operate a civil aircraft unless the airworthiness certificate required by paragraph (a) of this section or a special flight authorization issued under Sec. 91.715 is displayed at the cabin or cockpit entrance so that it is legible to passengers or crew.

As one enter the FWD entry door as mandated there must be a copy of the airworthiness certificate displayed but as he is saying ''badge on top of the door jamb'' l do not recall anything on top of the door jamb anyway if it has a Boeing logo then it must be an aircraft data plate of some sort where the aircraft owner is written, the aircraft line serial no. and the aircraft type and series no., sometimes it even says who is leasing company owns the airplane.