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**ASD-STE100 Simplified Technical English**

##### **Example:**

_<mark>Do not write: Before you remove the clamp, you must disconnect the hose.</mark>_

<mark>WRITE: Before you remove the clamp, disconnect the hose.</mark>

STE: <u>WARNING: IF YOU MUST CUT THE WIRE, ALWAYS USE A PROTECTIVE</u> MASK. PIECES OF WIRES CAN CAUSE INJURY.

### **Descriptive statements in instructions**

**Rule 5.4 When there is a condition that the reader must know about first, start the instruction with a descriptive statement. Then, divide that descriptive statement from the command with a comma.**

If a special condition is necessary for a work step, the reader must know the condition first.

<u>Write the condition first in the sentence, and then use a comma to show the end of the condition,</u> and the start of the instruction.

##### **Examples:**

_<mark>Do not write: Set the switch to NORMAL when the light comes on.</mark>_

<mark>WRITE:When the light comes on, set the switch to NORMAL.</mark>

_<mark>Do not write: Apply the primer when the surface is dry.</mark>_ <mark>WRITE:When the surface is dry, apply the primer.</mark>

_<mark>Do not write: D</mark> isconnect the Constant Speed Drive (CSD) from the gearbox, if it does not operate correctly._ <mark>WRITE:If the Constant Speed Drive (CSD) does not operate correctly, disconnect it from</mark> the gearbox.

<u>The comma is important. Be careful when you use it because the position of the comma can</u> change the meaning of your sentence.

##### **Examples in STE:**

<mark>If the Constant Speed Drive (CSD) does not operate correctly, disconnect it from the gearbox.</mark>

<mark>If the Constant Speed Drive (CSD) does not operate, correctly disconnect it from the gearbox.</mark>

The two sentences in the examples are correct, but their meanings are different. In the first sentence, the comma after "correctly" shows that the adverb modifies the verb "operate." In the second sentence, the comma after "operate" shows that the adverb modifies the verb "disconnect."

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**ASD-STE100 Simplified Technical English**

### **Notes**

#### **Rule 5.5 Write notes only to give information, not instructions.**

Notes only give information to help the reader during a procedure. They contain descriptive text and obey the rules for descriptive writing.

Notes must not give instructions, requirements, or limits.

##### **Examples in STE:**

||NOTE:|The gyroscope will become stable after approximately 15 seconds.||
||---|---||
||NOTE:|It is not necessary to remove the nameplate (33) from the flange (27).||
||NOTE:|You can use equivalent alternatives for these items.||

A note can have one or more sentences. Each sentence in a note can have a maximum of 25 words.

##### **Examples in STE:**

||NOTE:|During the subsequent test, you get the cracking pressure when the fuel flow from<br>the CROSS FEED port is more than 5 cc/minute.<br>(One sentence, 22 words.)||
||---|---||
||NOTE:|The data collection is not completed. Thus, the statistics module can give incorrect<br>results.||
|||(Two sentences, 6 words and 8 words.)||

Do not use the imperative form in a note. If you use the imperative form, the note becomes an instruction for a work step.

##### **Example:**

||_Non-STE:_|_NOTE:_|_Make surethat the avionics ventilation system continues to operate_<br>_correctly._||||(This text is not a note because it contains the imperative form.)||STE:||(6)|Make sure that the avionics ventilation system continues to operate<br>correctly.||
||||(This is work step number 6 in the applicable procedure.)||

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If you include instructions in a note, it is possible that the reader will not see the information. If the information given in a note is important to prevent damage or injury, you must give such information in a safety instruction.

##### **Examples:**

||_Non-STE:_|<br>_NOTE:_|_When you connect the lines, do not bend them too much. If you bend_<br>_the lines too much, you can cause damage to them._<br>(This text is not a note. It is a safety instruction.)||
||---|---|---||
||STE:|<br>CAUTION:|WHEN YOU CONNECT THE LINES, DO NOT BEND THEM TOO<br>MUCH. IF YOU BEND THE LINES TOO MUCH, YOU CAN CAUSE<br>DAMAGE TO THEM.||
||_Non-STE:_|<br>_NOTE:_|_Before closing the hatch, it is mandatory to ensure that no persons are_<br>_in the crew rest compartment. When the hatch is closed, there is no_<br>_airflow to the compartment and therefore there is a risk of suffocation._||
|||||(Although the non-STE text does not contain the imperative form, it is<br>not a note. It is a safety instruction.)||
||STE:|<br>WARNING:|BEFORE YOU CLOSE THE HATCH, MAKE SURE THAT NO<br>PERSONS ARE IN THE CREW REST COMPARTMENT. WHEN THE<br>HATCH IS CLOSED, THERE IS NO AIRFLOW TO THE<br>COMPARTMENT AND THERE IS A RISK OF SUFFOCATION.||

Do not use a note to give limits, tolerances, or results of a work step. This information must come directly after the related action in the work step.

##### **Examples:**

||_Non-STE:_|_B._|_Measure the leakage from the outlet port._||
||---|---|---||
|||_NOTE:_|_The leakage must not be more than 0.5 cc/minute._||
|||||(This note gives a limit that is important for the work step.)||
||STE:|B.|Measure the leakage from the outlet port. The leakage must not be<br>more than 0.5 cc/minute.||
|||||(This work step is correct. It gives the action first and then the related<br>limit.)||

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**ASD-STE100 Simplified Technical English**

##### <u>How to use notes correctly</u>

When you write a procedure, and this procedure contains notes, do this test:

- Carefully read the procedure without the notes.

- Make sure that the reader can do the procedure correctly without the notes.

A satisfactory result of this test tells you that you used the notes correctly.

If important information is missing from the procedure and this information is in a note:

- Remove the information from the note.

- Write the missing information in a work step.

- Include this new work step where applicable in the procedure.

- Do the test again until you are fully sure that the reader can do the procedure without the notes.

In STE, you use notes in procedures. You can write notes in descriptions only if the notes are necessary for illustrations or tables that are parts of such descriptions.

**Issue 9 2025-01-15**

**Part 1 - Writing rules**
