Guest Posted February 1, 2019 Share Posted February 1, 2019 Current incident involves a newer aircraft and that can be viewed at: https://avherald.com/h?article=4c381cd8&opt=0 Below is a previous incident but not likely the same cause . Investigation Report on Jet Airways B 737-800 Aircraft involved in landing gear collapse due improper overhaul of trunnion pins Prem Mahendranathan February 28, 2018 Final Investigation Report on Jet Airways Boeing B 737-800 Aircraft involved in landing gear collapse due improper overhaul of trunnion pins at Khajuraho Airport, India, on 13-04-2015 Incident Jet Airways B-737-800 aircraft VT-JGA flight 9W- 2423 (Delhi -Varanasi-Khajuraho –Delhi) was involved in an accident at Khajuraho Airport on 13.4.2015. There were 59 passengers and 08 crew members on board the aircraft. During landing Roll, 15 seconds after touchdown, at speed 36 knots, left main landing gear aft trunnion pin broke and aircraft started deviating to the left of center line. The aircraft came to stop on runway with damage to the LH landing gear and resting on LH engine, Nose & RH landing Gear. Hydraulic fluid spillage occurred due to damage to LH main landing gear. Emergency evacuation was carried out on the runway. Damage to aircraft. The aircraft sustained substantial damage. Following main damages occurred to the aircraft. 1. LH main landing gear aft trunnion pin found sheared off. The aft end of the LH MLG has travelled up and (puncturing the composite panels) protruding out and above the aft wing surface (walking beam visible above the wing surface).The damage limited to the composite panels and their non-structural support frames. 2. The support beam is damaged due L/G travel. 3. Hangar link assembly found a drift. 4. Hangar link mount found dislocated. 5. Side strut assembly twisted 6. Door attachment bracket and door found damaged. 7. MLG stub beam (structural member) between the aft spar and the MLG support beam lower forward attach lug ripped off. 8. Aircraft resting on the LH engine. Investigators of Aircraft Accident Investigation Bureau, India, found The Committee of inquiry determined the cause of accident as “The LH Aft landing Gear trunnion pin failed due to overload following fatigue growth. Crack initiation was in the heat affected area where excessive grinding was done at the time of overhaul. Initial crack growth is charterized by intergranular cracking (assisted by hydrogen embrittlement mechanism) until fatigue took over.” Link to comment Share on other sites More sharing options...
Seeker Posted February 1, 2019 Share Posted February 1, 2019 I would say that the massive amount of corrosion, soot and general grease and filth on the upper surface of the wing and below the skin tells you everything you need to know about the maintenance schedule being followed. This refers to the older incident of course. Link to comment Share on other sites More sharing options...
QFE Posted February 2, 2019 Share Posted February 2, 2019 Looks like anyone evacuating starboard side would get a nice trampoline bounce. Link to comment Share on other sites More sharing options...
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