Yükleme alanında irsaliye kontrol edildi.

Because yükleme alanı is a Turkish noun compound meaning loading area.

• yükleme = loading
• alan = area
• yükleme alanı = loading area

In this kind of compound, the second noun usually takes the 3rd person possessive ending:

• alan → alanı

Then the locative ending -da / -de is added:

• alanı
  • -nda → alanında

So:

• yükleme alanında = in the loading area

This structure is very common in Turkish:

• okul kapısı = school gate
• okul kapısında = at the school gate

So alanında is not literally in its area here in the normal English sense; it is just the standard form used inside this kind of noun compound.

Yükleme comes from the verb yüklemek, meaning to load.

The ending -me / -ma can turn a verb into a verbal noun, so:

• yüklemek = to load
• yükleme = loading

So yükleme alanı literally means something like the loading area or the area for loading.

A very common learner question—and this sentence is a good example of how Turkish changes things in the passive.

In the active voice, you might say:

• Görevli irsaliyeyi kontrol etti.
• The staff member checked the delivery note.

Here, irsaliye is the direct object, so it takes the accusative:

• irsaliye → irsaliyeyi

But in the passive sentence:

• Yükleme alanında irsaliye kontrol edildi.
• The delivery note was checked in the loading area.

Now irsaliye is no longer the object; it becomes the grammatical subject of the passive sentence. Because of that, it appears in the bare nominative form, not the accusative.

So:

• active: irsaliyeyi kontrol etti
• passive: irsaliye kontrol edildi

The passive is formed from kontrol etmek = to check.

This is a compound verb:

• kontrol = check / inspection / control
• etmek = to do

So:

• kontrol etmek = to check
• kontrol edilmek = to be checked

In the sentence, edildi is the past tense passive form:

• edil- = be done / be made / be checked here as part of kontrol edilmek
• -di = past tense

So kontrol edildi means was checked.

This pattern is very common with nouns plus etmek:

• iptal etmek = to cancel

• iptal edildi = was cancelled

• teslim etmek = to deliver
• teslim edildi = was delivered

Turkish often expresses actions with a noun + etmek structure instead of using a single simple verb.

So while English uses check, Turkish very naturally uses:

• kontrol etmek = to check

This is especially common in formal, business, technical, and administrative language. Since irsaliye is also a formal/logistics word, kontrol edildi sounds very natural in this context.

İrsaliye is a formal business/logistics term. It usually refers to a delivery note, dispatch note, or waybill-type shipping document, depending on context.

In everyday Turkish, it is not a casual household word for most situations; it belongs more to transport, warehousing, shipping, invoicing, and goods movement.

So in a sentence like this, it strongly suggests a warehouse or logistics setting.

Turkish has no direct equivalent of the English definite article the.

Whether something is understood as a, an, or the usually depends on context.

So:

• irsaliye can mean a delivery note or the delivery note
• yükleme alanında can mean in a loading area or in the loading area

In real usage, context tells you which meaning is intended. In a workplace or warehouse situation, this sentence will often be understood as the delivery note was checked in the loading area.

Yes. Turkish word order is flexible, although some orders sound more neutral than others.

The given sentence:

• Yükleme alanında irsaliye kontrol edildi.

is perfectly natural and puts the location first, then the thing checked.

A more neutral SOV-style arrangement could also be:

• İrsaliye yükleme alanında kontrol edildi.

Both are correct. The difference is mostly about emphasis or information flow:

• Yükleme alanında... emphasizes where
• İrsaliye... emphasizes what

Turkish often moves elements around to highlight the most important part of the message.

Because the sentence is in the 3rd person singular passive.

The subject is irsaliye, which is singular, so the verb appears as:

• kontrol edildi = it was checked

If the subject were plural, Turkish still often keeps the verb in singular form, especially when the plural subject is inanimate:

• İrsaliyeler kontrol edildi.
• The delivery notes were checked.

So edildi works naturally here without any extra ending.

Yes, it sounds fairly formal or administrative.

Reasons:

• irsaliye is a technical/business word
• kontrol edildi is a standard formal passive construction
• the whole sentence sounds like a warehouse log, report entry, or procedural note

In everyday casual conversation, a speaker might choose a more active structure if they want to sound less formal, for example:

• İrsaliyeyi yükleme alanında kontrol ettiler.
• They checked the delivery note in the loading area.

But for reports, labels, system messages, and workplace documentation, the original sentence sounds very natural.