Back to home page737 Classic MLG Failures on Landing

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

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Over the last 15 years there has been at least 18 instances of 737 Classic main landing gear (MLG) failures on landing, see full list below. The causes vary but seem to be due to the following main reasons

  • Excessive shimmy causing failure (6)
  • Heavy landing (4)
  • Component failure under normal load (2)
  • Cause unknown (6)

Most of these events have come from shimmy damper failures. The final report of JY-JAQ did an excellent analysis of the causes of shimmy and shimmy damper failure. It cited the following contributory factors:

  • High altitude airport
  • An overly soft landing, allows the landing gears to remain in the air mode longer, which makes them more vulnerable to shimmy
  • Touchdown with a closure rate of 1 fps, which is considered overly soft and may increase the risk of shimmy torsional forces
  • High ground speed at touchdown
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*** Updated 18 Apr 2020 ***

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List of 737 Classic MLG failures:
  • 25 Feb 2020 - PK-YSG, 737-300SF, Trigana Air Service, MLG collapse whilst taxying at Jayapura, Indonesia (cause unknown)
  • 22 Nov 2019 - YV-3012, 737-400, Avior Airlines MLG collapse during landing at Bogota (cause unknown)
  • 22 Nov 2018 - OB-2041-P, 737-500, Peruvian Airlines MLG collapse on landing at La Paz. (cause unknown)
  • 28 Mar 2017 - OB-2036-P, 737-300, Peruvian Airlines, Gear collapse and fire on landing at Jauja (heavy landing)
  • 27 Mar 2017 - EP-TBJ, 737-400, Taban, gear collapse on landing at Ardabil (shimmy damper)
  • 10 Dec 2016 - JY-JAQ, 737-400, Safi Airways, soft Landing and RH MLG collapse at Kabul (shimmy damper)
  • 09 Nov 2016 - HK-5139, 737-400F, AerCaribe partial failure of both left and right main landing-gear landing at Bogota (shimmy damper)
  • 04 Oct 2016 - OE-IAG, 737-400, ASL Airlines, Belfast (shimmy damper)
  • 12 Sep 2016 - PK-YSY, 737-300SF, Trigana Air Service MLG collapse on landing at Wamena, Indonesia. (heavy landing)
  • 26 Nov 2015 - XA-UNM 737-300 Gear collapse on landing at Mexico City-Benito Juárez (cause unknown)
  • 22 Nov 2015 - EX-37005 737-300 Gear collapse on landing at Osh (heavy landing)
  • 26 Oct 2015 - ZS-OAA, 737-400, Comair, Johannesburg, South Africa (shimmy damper)
  • 24 Oct 2015 - OB-2040-P 737-300, Peruvian Airlines MLG collapse on landing at Cusco (shimmy damper)
  • 28 Aug 2015 - PK-BBY 737-300CF, Cardig Air, MLG collapse in a landing accident at Wamena, Indonesia. (heavy landing)
  • 29 Apr 2014 - EI-STD, B737-400, Air Contractors MLG failure on landing at East Midlands (component failure under normal load)
  • 07 Nov 2014 - YA-PIE 737-400, Ariana right MLG failure on landing. (cause unknown)
  • 26 Jan 2014 - ZK-TLC, 737-300SF, Pacific Air Express, MLG collapse on landing at Honiara, Solomon Islands (component failure under normal load)
  • 11 Feb 2013 - AP-BEH, 737-300, Pakistan International Airlines, Muscat-Seeb, Oman (cause unknown)

 

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