737NG QRH - YB123, YB124, ... etc.????

1. offizieller Beitrag
    • Offizieller Beitrag

    Hallo Leute,
    in einem 737NG QRH, das mir vorliegt, finden sich immer wieder Abkürzungen wie YB123, YB124, YK007...(Bsp. Section Engine Fire). Ich denke, das bezieht sich auf bestimme Flieger und Modelle. Aber die Frage ist, welche? Handelt es sich um Regs, Seriennummern, Airline-interne Codes? Oder allgemeine Bezeichnungen für Maschinen in bestimmter Ausstattung?

    Wäre toll, wenn jemand Licht ins dunkel bringen könnte.

    Das sind die "Block Numbers" -

    Kurze Erklärung via Google

    Zitat

    WB051, United's first 777-200ER.

    W: The first letter indicates the aircraft by model. W is for the 777, V is the 767, R is the 747. Unfortunately, I don't know the single-aisle designations. Okay, that was pretty easy.

    B: Now it gets a bit trickier. For the most part, the second letter indicates the aircraft by version. Here, the 'B' indicates it is a -200ER. An 'A' would indicate a standard -200. But if you were thinking a 'C' would be the -300, stop. It doesn't. For some reason, Boeing decided to divide the 'B's in half. The first half (WB001-WB499) are -200ERs, while the second half (WB501-WB999) are where you find the -300 series. Okay, this will now tie into:

    051: To finish, each customer is given a block of aircraft, indicated by the 3 numbers. These blocks can be large or small, depending on how many aircraft the particular customer has on order/option. For instance, British Airways, with 5 -200s on order, has a small block of 'A' aircraft (WA076-WA085) but, with 40 -200ERs on order, a much larger block of 'B's (WB001-WB050). As you can imagine, United has large blocks of both series (WA002-WA075, WA261-WA270, WB051-WB100). As you hopefully noticed, UA actually has been assigned 2 different blocks of -200 aircraft. This leads to the last point; the series of numbers are assigned in the sequence of assembly, not order. However, they are also broken up if a customer orders different configurations for the same aircraft. For example, ANA has both a 2-class 'Domestic' 777-200 and a 3-class 'International' configuration. These are seperated into 2 different blocks. The United seperation comes from another reason, as well. The aircraft from the second block come from a follow-on order (not conversion of options) placed years after the first. This results in a different series of numbers.

    Hallo,

    viele Airlines haben die Numbers mit auf die Nameplate im Cockpit gedruckt

    Siehe : http://www.jetphotos.net/viewphoto.php?id=7439894

    Oder man hat selber etwas "gebastelt"

    z.B. http://www.airliners.net/photo/Jet-Airways/Boeing-737-85R/2035665/

    Bei uns ist die Block Number vorne auf der Deckseite des QRH zu finden.