Topic Author
Posts: 43
Joined: Mon Nov 20, 2017 9:18 pm

Question about the use of checklists

Mon Feb 12, 2018 9:25 am

Hello everyone,
I just found this cockpit preperation and normal checklist for the Q400 (

According to this checklist, there are 4 kinds of items: First flight of the day, challenge and response, normal, and APU Startup Procedure.

My question is: Which of these item types do you have to read out loud, which can be silent? Also, is everything except the challenge and response done by 1 pilot only by responding to his items?
Also, how about the apu startup procedure, is it done solo or is it also challenge and response?

Sorry, if this question seems a bit stupid. But I'm a bit confused since someone told me that all of the "normal" items have to be done based on the challenge and response concept.
User avatar
Posts: 18863
Joined: Fri Feb 27, 2004 9:54 pm

Re: Question about the use of checklists

Mon Feb 12, 2018 10:15 am

Caveat: Lots of this stuff is type dependent.

The items on the first two pages aren't checklists. They are flows. The appropriate crew member performs the flow, typically from memory, then may double-check on the document that he/she did everything, perhaps after each section.

The second two pages are checklists. Most of those would be challenge/response as you can see from the colour coding.

Lots of stuff is done with flows. Checklists are there to catch the important stuff that may have been missed. They are kept short and are not cluttered with stuff like "Circuit breakers in".

Automation also means that the plane "checks" many items for us. Type dependent example: If the fuel pumps are off the plane will let us know. So fuel pumps to "on" is in the overhead panel setup flow, and not in the before start checklist.

(Some checklists are "auto-challenge", for example in our case the after take-off and after landing checklists, are both read and responded to by the PM.)
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
Posts: 1678
Joined: Mon Sep 24, 2001 6:44 am

Re: Question about the use of checklists

Tue Feb 13, 2018 10:59 am

Each airline develops its own checklists using the manufacturer OEM manuals as guidance.

So the answer to your question is it depends. The checklist you have is just a checklist, the other part of the checklist is in the airline AOM which has the same checklist, but in expanded form. And dictates how the checklist is to be done, silent flow, challenge and response, read and do, etc. So for each item on the checklist, the AOM expands on what the crew member should be checking and what values are acceptable, and what the response should be.

The same aircraft type at one airline could have a totally different checklist at another airline. I was riding the jumpseat of another airline in an aircraft I was typed and current to fly, but their checklists and flows were totally foreign and I was lost. At another airline in the same type, the checklists and flows were very similar to my airlines checklist.

So although you have the q400 checklist, you are missing the expanded checklist in the AOM which tells you how to run the checklist.
Bonus animus sit, ab experientia. Quod salvatum fuerit de malis usu venit judicium.

Who is online

Users browsing this forum: No registered users and 23 guests

Popular Searches On

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos