Crash of a Boeing 737 MAX 8 near Debre Zeit: 157 killed

Date & Time: Mar 10, 2019 at 0844 LT
Type of aircraft:
Operator:
Registration:
ET-AVJ
Flight Phase:
Survivors:
No
Site:
Schedule:
Addis Ababa – Nairobi
MSN:
62450/7243
YOM:
2018
Flight number:
ET302
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
149
Pax fatalities:
Other fatalities:
Total fatalities:
157
Captain / Total flying hours:
8122
Captain / Total hours on type:
1417.00
Copilot / Total flying hours:
361
Copilot / Total hours on type:
207
Aircraft flight hours:
1330
Aircraft flight cycles:
382
Circumstances:
On March 10, 2019, at 05:38 UTC, Ethiopian Airlines flight 302, Boeing 737-8(MAX), ET-AVJ, took off from Addis Ababa Bole Int. Airport bound to Nairobi, Kenya Jomo Kenyatta Int. Airport. Shortly after takeoff, the Angle of Attack sensor recorded value became erroneous and the left stick shaker activated and remained active until near the end of the flight. In addition, the airspeed and altitude values from the left air data system began deviating from the corresponding right side values. Due to flight control problems, the Captain was unable to maintain the flight path and requested to return back to the departure airport. The crew lost control of the aircraft which crashed at 5: 44 UTC 28 NM South East of Addis Ababa near Ejere village. Both CVR and DFDR were recovered in the morning of March 11. The 737 MAX 8 version was grounded until further notice.

A preliminary report is available below.
Final Report:

Crash of a Boeing 737 MAX 8 off Jakarta: 189 killed

Date & Time: Oct 29, 2018 at 0631 LT
Type of aircraft:
Operator:
Registration:
PK-LQP
Flight Phase:
Survivors:
No
Schedule:
Jakarta - Pangkal Pinang
MSN:
43000
YOM:
2018
Flight number:
JT610
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
181
Pax fatalities:
Other fatalities:
Total fatalities:
189
Captain / Total flying hours:
6028
Captain / Total hours on type:
5176.00
Copilot / Total flying hours:
5174
Copilot / Total hours on type:
4286
Aircraft flight hours:
895
Aircraft flight cycles:
443
Circumstances:
The aircraft departed runway 25L at Jakarta-Soekarno-Hatta Airport at 0621LT bound for Pangkal Pinang, carrying 181 passengers and 8 crew members. The crew was cleared to climb but apparently encountered technical problems and was unable to reach a higher altitude than 5,375 feet. At this time, the flight shows erratic speed and altitude values. The pilot declared an emergency and elected to return to Jakarta when control was lost while at an altitude of 3,650 feet and at a speed of 345 knots. The airplane entered a dive and crashed 12 minutes after takeoff into the Kerawang Sea, about 63 km northeast from its departure point. The airplane disintegrated on impact and few debris were already recovered but unfortunately no survivors. It has been reported that the aircraft suffered various technical issues during the previous flight on Sunday night but was released for service on Monday morning. Brand new, the airplane was delivered to Lion Air last August 18. At the time of the accident, weather conditions were considered as good. The Cockpit Voice Recorder (CVR) was found on 14 January 2019. In the initial stages of the investigation, it was found that there is a potential for repeated automatic nose down trim commands of the horizontal stabilizer when the flight control system on a Boeing 737 MAX aircraft receives an erroneously high single AOA sensor input. Such a specific condition could among others potentially result in the stick shaker activating on the affected side and IAS, ALT and/or AOA DISAGREE alerts. The logic behind the automatic nose down trim lies in the aircraft's MCAS (Maneuvering Characteristics Augmentation System) that was introduced by Boeing on the MAX series aircraft. This feature was added to prevent the aircraft from entering a stall under specific conditions. On November 6, 2018, Boeing issued an Operations Manual Bulletin (OMB) directing operators to existing flight crew procedures to address circumstances where there is erroneous input from an AOA sensor. On November 7, the FAA issued an emergency Airworthiness Directive requiring "revising certificate limitations and operating procedures of the airplane flight manual (AFM) to provide the flight crew with runaway horizontal stabilizer trim procedures to follow under certain conditions.