ASN Wikibase Occurrence # 194609
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| Date: | Thursday 6 April 2017 |
| Time: | c. 10:15 LT |
| Type: |  Beechcraft B200 Super King Air |
| Owner/operator: | private |
| Registration: | JA01EP |
| MSN: | BB-1604 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | near Komatsu Airbase (KMQ/RJNK) -
 Japan
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Gifu (QGU/RJNG) |
| Takamatsu Airport | |
| Investigating agency: | JTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Beechcraft B200 Super King Air suffered crack on the forward right windshield following temporal emission of smoke near Komatsu Airbase at FL200. The airplane returned to Gifu Airbase with ATC priority, and made a safe landing at 10:41 LT. There were no injuries.
JTSB Conclusion:
In this serious incident, it is probable that because screw of the terminal block at the right windshield had being loosened, the electrical resistance at the contact point increased and the terminal block was overheated, the surrounding combustible parts and components were burned out and the smoke was generated in the aircraft.
Regarding loosening of the screw at the terminal blocks, it is somewhat likely that because the tightening torque was insufficient when replacing the windshield, the loosening grew bigger by the vibration caused in flights. Furthermore, it is somewhat likely that it was contributed to the generating of the incident that proper measures were not taken to correct indications and symptoms of malfunctions which were occurring repeatedly.
Accident investigation:
 |
|
Sources:
http://jtsb.mlit.go.jp/jtsb/aircraft/detail2.php?id=2178
http://aerossurance.com/safety-management/ka200-smoke-windshield/
Media:
#OTD 2017 Under-torquing a screw 5 years earlier is believed to be the cause of this in flight emergency.https://t.co/DCjbe8HKI9 #flightsafety #aviationsafety #aviationmaintenance pic.twitter.com/Jfu4Ll1Kff
— Aerossurance (@Aerossurance) April 6, 2021
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Apr-2017 19:14 | isamuel | Added |
| 23-Dec-2017 17:09 | harro | Updated [Nature, Destination airport, Narrative] |
| 28-Dec-2017 11:55 | harro | Updated [Narrative] |
| 28-Mar-2018 07:03 | Aerossurance | Updated [Source] |
| 17-Jul-2018 19:53 | harro | Updated [Source] |
| 06-Apr-2021 07:26 | Aerossurance | Updated [Departure airport, Embed code] |
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