Runway excursion Serious incident Embraer ERJ-175STD (ERJ-170-200) JA11FJ, Tuesday 23 April 2019
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Date:Tuesday 23 April 2019
Time:16:45 LT
Type:Silhouette image of generic E170 model; specific model in this crash may look slightly different    
Embraer ERJ-175STD (ERJ-170-200)
Owner/operator:Fuji Dream Airlines
Registration: JA11FJ
MSN: 17000526
Fatalities:Fatalities: 0 / Occupants: 64
Other fatalities:0
Aircraft damage: Minor
Category:Serious incident
Location:Yamagata Airport (GAJ/RJSC) -   Japan
Phase: Take off
Nature:Passenger - Scheduled
Departure airport:Yamagata-Junmachi Airport (GAJ/RJSC)
Destination airport:Nagoya-Komaki International Airport (NKM/RJNA)
Investigating agency: JTSB
Confidence Rating: Accident investigation report completed and information captured
Fuji Dream Airlines' flight FDA/JH386 from Yamagata to Nagoya/Komaki, operated by a ERJ-175STD, suffered runway excursion while take off from runway 19 of Yamagata. The aircraft veered off to the left side of the runway just after the takeoff roll, hit and damaged the right side of the PAPI located 387 meters from the runway threshold, and stopped about 10 meters left of the runway and 700 meters from the runway threshold. The nose gear suffered a scratch, however, there were no more damage on the aircraft. No injuries were reported among 4 crew and 60 passengers. The sole runway was closed until the next morning, causing 8 other commercial flights to be cancelled, one more to be diverted to Sendai Airport (SDJ/RJSS).

The JTSB concludes that the probable cause of this serious incident was that because the Aircraft could not change its direction while trying to control the nosewheel steering with the Pedal mode when it started takeoff roll, the Aircraft was disabled to move on its own when it stopped in the grass field after running off the side of the runway while aborting the takeoff.
Regarding the reason why the Pedal mode could not control the nosewheel steering, it is highly probable that because there was an abnormality in the microswitch inside the Handle, the steering mode stayed in the Handle mode.
The cause of the microswitch failure could not be determined even in the detailed investigation.

The METAR data at Yamagata (accident time 16:45LT/07:45 UTC):
RJSC 230700Z 07013KT CAVOK 21/07 Q1016
RJSC 230800Z 07013KT CAVOK 20/07 Q1016

Accident investigation:
Investigating agency: JTSB
Report number: AI2021-8
Status: Investigation completed
Duration: 2 years and 6 months
Download report: Final report



Revision history:

23-Apr-2019 11:01 isamuel Added
23-Apr-2019 11:05 harro Updated [Embed code]
23-Apr-2019 19:13 Aerossurance Updated [Embed code, Narrative]
24-Apr-2019 13:52 isamuel Updated [Source, Narrative]
25-Apr-2019 12:53 isamuel Updated [Source, Damage, Narrative]
20-May-2024 13:28 harro Updated [Other fatalities, Embed code, Narrative, Accident report]

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