Back to home pageTHE BOEING 737 TECHNICAL SITE

Created by Chris Brady Sept 1999

Contents

Illustrated technical information covering Vol 2 Over 800 multi-choice systems questions Close up photos of internal and external components Illustrated history and description of all variants of 737 Databases and reports of all the major 737 accidents & incidents History and Development of the Boeing 737 - MAX General flightdeck views of each generation of 737's Description & news reports of Advanced Blended Winglets Detailed tech specs of every series of 737 A collection of my favourite photographs that I have taken of or from the 737 Press reports of orders and deliveries Details about 737 production methods A compilation of links to other sites with useful 737 content Study notes and technical information A compilation of links to major 737 news stories with a downloadable archive A quick concise overview of the pages on this site

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Introduction

Welcome to the Boeing 737 Technical Site. Here you will find technical, operational, and training notes; articles and photos contributed by 737 pilots and engineers from around the world.

All of the information, photographs & schematics from this website and much more is now available in a recently updated 374 page  printed book or in electronic format.

Feel free to use anything here for your own personal use. If you are an organisation then please contact me for licence to use any of the images. Please note that I have a library of many thousands of technical images in high resolution.

Please treat your company FCOMs as the final authority in case your aircraft have differences. This website and the 737 Technical Guide have no connection to the Boeing Company.

If you have any suggestions or corrections to any of the information here, please email them on to me and I will write them into the site for the benefit of other visitors.

Follow the Boeing 737 Technical Site on social media using the links on the right to be notified of any updates.

This site uses cookies to personalise ads, to provide social media features and to analyse traffic. It therefore also shares information about your use of the site with social media, advertising and analytics partners. See details

See more details about the book

All of the information, photographs & schematics from this website and much more is now available in a 374 page printed book or in electronic format.

*** Updated 23 Nov 2020 ***

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Website updates & news...

08 Mar 2021 - More details on the changes to the MCAS/FCC software

05 Mar 2021 - My latest presentation “A detailed look at MCAS on the 737 MAX”

25 Feb 2021 - US DoT have published their report into FAA oversight of the MAX certification

23 Feb 2021 - 737NG bear strap cracking AD issued

23 Feb 2021 - 737NG SOB slot sealant AD issued

23 Feb 2021 - P-8A to get upgraded radar, the new Raytheon AN/APY-10

23 Feb 2021 - 737NG & MAX AD to address cracked or completely severed lugs in the upper aft corner stop fitting assembly of the forward entry door

17 Feb 2021 - Boeing issue FOTB on the prevention of aircraft upsets

17 Feb 2021 - The UAE authorises the 737 MAX to fly again in UAE airspace.

10 Feb 2021 - Preliminary report issued into 737-500 PK-CLC of Sriwijaya Air that crashed into the Java Sea

06 Feb 2021 - Link to my presentation to the RAeS on the 737 MAX and MCAS story

05 Feb 2021 - Tata Boeing Aerospace Limited to Manufacture 737 Vertical Fin Structures in Hyderabad, India

03 Feb 2021 - MAX-10 deliveries delayed until 2023

31 Jan 2021 - My presentation to the RAeS on the 737 MAX and MCAS story 4 Feb 2021 at 18:30GMT

27 Jan 2021 - EASA declares Boeing 737 MAX safe to return to service in Europe

21 Jan 2021 - Discussion on hard landings

19 Jan 2021 - West Atlantic 737-400F G-JMCY heavy landing & possible W/O at Exeter

18 Jan 2021 - Transport Canada issue their ungrounding AD for MAX

13 Jan 2021 - Preliminary report issued into 737-400, ZS-OAF Safair which suffered a depressurisation whilst climbing out from Cape Town, South Africa on 22nd Nov 2020.

09 Jan 2021 - 737-500 PK-CLC of Sriwijaya Air has crashed into the Java Sea

07 Jan 2021 - Boeing to pay $2.5 billion to settle US Justice Department investigation and admits that employees misled regulators about the safety of the MAX

06 Jan 2021 - 737-500, EY-560, Air Djibouti landing accident at Garowe, Somalia. Preliminary report issued.

30 Dec 2020 - A description of 737 storage issues

29 Dec 2020 - Summary of changes in legislation following the 737 MAX accidents

26 Dec 2020 - 737-700, VQ-BIP operated by Yakutia overran the runway after landing during snow at Vnukovo, Russia on 25th Dec 2020

23 Dec 2020 - 737-1/2/3/4/500 center wing box cracks inspection AD issued

23 Dec 2020 - Latest FAA TCDS Rev 66 updated 9 Nov 2020 available here

22 Dec 2020 - Details of Lion Air 737-900ER PK-LGP Runway excursion after landing at Bandar Lampung, Indonesia on 20th Dec 2020.

21 Dec 2020 - 737-1/2/3/4/500 fuselage skin panel cracking AD issued

19 Dec 2020 - The Senate Committee on Commerce, Science, and Transportation, has released the Committee’s investigation report on the FAAs Safety Oversight

18 Dec 2020 - Transport Canada announce MAX ungrounding AD to be issued in Jan 2021.

16 Dec 2020 - The two (Senate & House) US legislative bills explained

13 Dec 2020 - The NTSB have issued their final report into N766SW uncontained engine failure and loss of pressurisation on 27 Aug 2016.

06 Dec 2020 - The South African CAA have issued their final report into the Stab out of trim incident to 737-800, ZS-SJD, operated by Mango on 2 Sep 2019.

04 Dec 2020 - Ryanair orders 75 Boeing MAX 8200s in largest order since grounding

02 Dec 2020 - 737-500, EY-560, operated by Air Djibouti has suffered left main landing gear collapse at low slow during the landing roll at Garowe, Somalia. No injuries.

27 Nov 2020 - The Nigerian AIB have published their final report into the runway excursion involving Boeing 737-500, 5N-BLG at Lagos on 9th April 2016.

26 Nov 2020 - Stall warning system page added

25 Nov 2020 - Full details of the changes to the MCAS system and assoiated procedures & training are detailed here.

24 Nov 2020 - EASA have issued a proposed AD 20-184 cancelling the ‘suspension of flight operations‘ The affected Boeing 737-8 and 737-9 aeroplanes can be returned to service, provided that the required actions proposed in this PAD have been accomplished.

20 Nov 2020 - The Ukrainian NBAAI have published their final report into the runway excursion and nosegear collapse of 737-800, TC-JGZ operated by Turkish Airlines at Odessa on 21 Nov 2019.

20 Nov 2020 - 737 MAX ungrounding conditions AD issued

20 Nov 2020 - 737-800BCF details added

18 Nov 2020 - FAA rescinds the MAX grounding order

18 Nov 2020 - Stab Trim Runaway procedure changes again

08 Nov 2020 - Final report issued into HS-KMC, 737-400F, K-Mile Asia at Singapore, main gear torsion link failure on landing on 5 Jun 2019.

04 Nov 2020 - The Nigerian AIB have published their final report into the runway excursion involving Boeing 737-200, 5N-BIG at Port-Harcourt International Airport on 14th July, 2008.

03 Nov 2020 - Proposed new Runaway Stabiliser procedure added

07 Oct 2020 - The FAA have issued draft Flight Standardization Board Report FSBR B737 Rev 17 for comments by 2 Nov 2020.

07 Oct 2020 - Enhanced Vision Systems page added

26 Sep 2020 - MAX to get a third AoA source

24 Sep 2020 - 737NG FQIS AD issued

16 Sep 2020 - The House Committee on Transportation & Infrastructure published its final report on the Design, Development, and Certification of the Boeing 737 MAX

11 Sep 2020 - Final report issued into Safair, 737-400, ZS-DMI, smoke in the cockpit event whilst climbing en-route to OR Tambo, South Africa on 19 Dec 2019

11 Sep 2020 - JOEB to conduct a multi-day simulator session in London from 14 Sep 2020 for MAX checklist & memory items.

10 Sep 2020 - GAMECO and Boeing have jointly announced that a second 737NG freighter conversion line will be built in Guangzhou

07 Sep 2020 - EASA begins MAX validation flight tests from Vancouver.

25 Aug 2020 - FAA issue AD for 737CL PSUs

11 Aug 2020 - AD issued for all CFM56 powered 737's to address engine bleed air 5th stage check valves being stuck open

07 Aug 2020 - 737-800, VT-AXH, operated by Air India Express has overrun runway 10 after landing and fell down a ravine at Kozhikode, India.

04 Aug 2020 - The FAA issue NPRM to supersede Airworthiness Directive (AD) 2018-23-51 to unground the MAX

03 Aug 2020 - The FAA have issued a 96-page Return to Service Preliminary Study for the MAX

27 Jul 2020 - The UK CAA amended Safety Directive SD 2019/001 for the 737 MAX, to introduce the possibility for managed ferry flights

24 Jul 2020 - Emergency AD issued for all CFM56 powered 737's to address engine bleed air 5th stage check valves being stuck open

21 Jul 2020 - Boeing issue FOTB "737 MAX Return to Service Operational Readiness Flight"

23 Jul 2020 - 737 Classic nacelle fatigue cracking AD issued

17 Jul 2020 - PEMCO B737-700FC (FlexCombi) gains FAA STC

15 Jul 2020 - MAX Kathon FP 1.5 Biocide AD issued today

06 Jul 2020 - MAX Operational Readiness Review flight tests to commence soon

02 Jul 2020 - FAA maps out remaining tasks to lift the MAX grounding order

29 Jun 2020 - Boeing & FAA commence a 3-day certification flight test program for the MAX

25 Jun 2020 - FAA issue MAX engine nacelle and strut electrical bonding AD

25 Jun 2020 - Boeing asked by regulators to consider further design enhancements to the MAX

19 Jun 2020 - Final report published into West Atlantic 737-400 G-JMCR electrical failures in-flight at Brussels on 4 Jun 2019

16 Jun 2020 - Gameco Inaugurates Boeing 737-800 Freighter Conversion Line

11 Jun 2020 - MAX MMEL post-MCAS fixes Revision 2 changes detailed

05 Jun 2020 - 737-400SF, N733CK, opertaed by Kalitta Charters II has overrun the runway following an RTO at Rochester, New York on 5 Jun 2020.

04 Jun 2020 - Aircraft Safety Improvement Act proposed to mandate SMS by manufacturers and consideration of HF by FAA.

29 Apr 2020 - Investigation launched into Boeing’s compliance with MAX production regulations

23 Nov 2020 - 737 Technical Guide printed and EPUB versions updated

08 Apr 2020 - MCAS test flight delayed by a month due to Coronavirus

31 Mar 2020 - More P-8A Sales

30 Mar 2020 - Final report released into 737-800, VH-VUH Virgin Australia failure of the #1 main wheel assembly whilst taxying at Brisbane on 4 Jan 2017.

21 Mar 2020 - Final report published into the runway excursion on landing of Belavia, 737-300, EW-336PA, at Kiev on 12 July 2019

13 Mar 2020 - Preliminary report issued on TC-IZK Pegasus 737-800 runway excursion on landing at Istanbul 5 Feb 2020

09 Mar 2020 - Interim Investigation Report published into Ethiopian MAX-8 MCAS accident of 10 March 2019

06 Mar 2020 - The House Committee on Transportation & Infrastructure today published its Preliminary Investigative Findings on the 737 MAX Costs, Consequences, and Lessons from its Design, Development, and Certification.

27 Feb 2020 - Preliminary report issued into Safair, 737-400, ZS-DMI, smoke in the cockpit event whilst climbing en-route to OR Tambo, South Africa on 19 Dec 2019

25 Feb 2020 - PK-YSG, 737-300SF, Trigana Air Service, MLG collapse whilst taxying at Jayapura, Indonesia

05 Feb 2020 - TC-IZK Pegasus 737-800 runway excursion on landing at Istanbul

22 Jan 2020 - Final report published into UT Air 737-800 VQ-BJI runway excursion after landing at Sochi 01 Sep 2018

22 Jan 2020 - Revised preliminary report issued into the shooting down of UR-PSR at Tehran

19 Jan 2020 - MCAS - Special Committee investigation into FAA Certification of MAX report released

17 Jan 2020 - 737NG left temperature control valve and control cabin trim air modulating valve AD issued

10 Jan 2020 - Emails released discussing MAX differences from NG and differences to reduce certification and training impact

08 Jan 2020 - Ukranian Airlines 737-800 shot down in error by Iranian SAMs after take-off from Tehran IKA airport

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