Terms of service
The agreement between you and 737 Knowledge when you use the site. Last updated 3 November 2026.
About these terms
These terms are between you and 737 Knowledge (737knowledge.com, "we", "us"). By using the site or creating an account you agree to these terms. Our privacy policy explains how we handle your data. Questions: hello@737knowledge.com.
For study, not for operating an aircraft
737 Knowledge is a study and revision aid, written from the 737 FCOM, FCTM and QRH and checked carefully. It is not approved operational documentation and it doesn't replace your operator's manuals, procedures or training. Always follow your operator's approved documentation. 737 Knowledge is independent and is not affiliated with or endorsed by The Boeing Company.
Your account
- Give us accurate details and keep your password to yourself. You're responsible for what happens on your account.
- An account is for one person. Please don't share it or sell access to it.
- You must be at least 16 to create an account.
Plans and payments
- Free gives you a taste of the tools, as the pricing page sets out, at no cost.
- 737 Knowledge+ is a subscription, billed monthly or yearly in advance. It renews automatically at the end of each period until you cancel. Before a yearly plan renews, we email you a reminder with the date and the amount.
- The Type Rating Pass is a single payment for 737 Knowledge+ for three months. It doesn't renew.
- Prices are shown on the pricing page in US dollars and include any VAT or sales tax. At checkout you can pay in your own currency: Stripe shows you the exact amount before you pay.
- Payments are handled by Stripe. If a renewal payment fails, we may pause your access until it's paid.
- If we change the price of a subscription, we'll tell you by email at least 30 days before it applies to you, and you can cancel before then.
- Founding members who joined through our earlier newsletter keep the price they signed up at for as long as their subscription continues.
Offers and codes
- From time to time we may run an offer with a code, such as money off the first year of the yearly plan. Each offer says what it gives and when it ends, in UK time.
- A code is for one account, once, and for someone who hasn't had a paid plan with us before. Founding members keep their own price instead.
- A code applies to the plan it names (the first year of the yearly plan, unless it says otherwise); after that first year the plan renews at the price shown on the pricing page.
- A code works only until the offer's stated end. It can't be combined with another offer, or applied to a plan after you've bought it.
Cancelling and refunds
- You can cancel a subscription at any time from your account page. You keep 737 Knowledge+ until the end of the period you've paid for, and you won't be charged again.
- UK and EU law gives consumers 14 days to cancel a purchase of digital content. Because 737 Knowledge+ opens straight away, at checkout you ask us to start immediately and agree that the 14-day right ends once access begins. We confirm this in the email we send when you buy.
- If something has gone wrong, such as a duplicate charge or the site not working for you, write to us and we'll put it right, including a refund where it's fair.
- Nothing in these terms affects your legal rights as a consumer.
Using the site fairly
Please don't:
- copy, scrape, download in bulk, republish or sell our questions, explanations, scenarios, articles or drawings;
- try to get around the plans' limits, the sign-in or the site's security;
- use the site to break the law, or to harm the site or other people.
We may suspend or close an account that breaks these rules. If we close a paid account for no fault of yours, we'll refund the unused part.
Our content
The site, its questions, explanations, scenarios, articles, drawings and software belong to 737 Knowledge or its licensors. A plan gives you a personal licence to use them for your own study while your access lasts. Material from Boeing manuals remains The Boeing Company's, and is referred to for study.
Availability and changes
We work hard to keep the site accurate and running, but we can't promise it will always be available or free of errors. We improve the tools all the time, and may change or retire features. If a change takes away a significant part of what you've paid for, you can cancel and we'll refund the unused part.
Liability
We're responsible for loss that is a foreseeable result of us breaking these terms or failing to use reasonable care and skill. We aren't responsible for loss that wasn't foreseeable, for business losses, or for anything that comes from relying on the site instead of your operator's approved documentation. Our total liability to you is limited to what you've paid us in the 12 months before the claim. Nothing here limits liability where the law doesn't allow it, such as for death or personal injury caused by negligence, or for fraud.
Changes to these terms
We may update these terms. If a change matters, we'll update the date at the top and tell account holders by email before it applies.
Law
These terms are governed by the law of England and Wales, and its courts have jurisdiction. If you live elsewhere in the UK or in the EU, you can also rely on the consumer protection laws where you live and bring a claim in your local courts.
Who we are
737 Knowledge is a trading name of Nebula Ventures Ltd, a private limited company registered in England and Wales, company number 16509781. Registered office: 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ.