On 30 August , the first prototype performed its maiden flight. Deliveries commenced on 30 March and commercial operations began the following month. The majority of orders for the type were issued from various Japanese airliners. While sales to such customers were swift in the YS's initial years of availability, this limited market soon became saturated, leading to a slump in demand. Following efforts to acquire more sales from international customers, including the development of the improved YSA variant, production of the type ceased during Ultimately, while the YS had demonstrated Japan's ability to produce an airliner, NAMC had accumulated considerable debts and the type is largely considered to be a commercial failure.
Large numbers of the type continued to be in service until , at which point tighter Japanese aircraft regulations imposed by the Ministry of Land, Infrastructure, Transport and Tourism necessitated either the withdrawal or refitting of all YSs. Location: Mae Sot. Country: Thailand. Circumstances: The approach and landing at Mae Sot Airport were completed in rainy conditions.
After touchdown, the aircraft was unable to stop within the remaining distance, collided with a fence and came to rest. All 28 occupants evacuated safely while the aircraft was damaged beyond repair. Probable cause: On final approach, the aircraft was too high and landed too far down the runway at an excessive speed.
The runway surface was wet and the braking action was poor. Registration: JA Schedule: Hakodate - Sapporo. Flight number: EL Location: Sapporo-Okadama. Circumstances: On approach to Sapporo-Okadama, the aircraft was too high on the glide and approached at an excessive speed. It landed too far down a snow covered runway and was unable to stop within the remaining distance. It overran, collided with snow bank and came to rest. All 41 occupants escaped uninjured while the aircraft was damaged beyond repair.
Probable cause: Wrong approach configuration on part of the crew who completed the approach at an excessive speed and above the glide, causing the aircraft to land too far down the runway. The following findings were identified: - The aircraft speed was 23 knots higher than the reference speed above threshold, - Excessive speed upon touchdown, - The braking action was reduced because the runway surface was contaminated with snow, - The aircraft was unable to stop within the remaining distance, - The crew failed to initiate a go-around procedure while the landing was obviously missed, - Marginal weather conditions, - Poor crew coordination, - Poor airspeed monitoring on part of the flying crew.
Location: Naga City. Camarines Sur. Circumstances: The aircraft landed hard with its right main gear first. It also became a loss-maker after the Smithsonian Agreement led to an appreciation in the value of the Japanese yen. With these factors in mind, production was terminated in the early s.
As time has gone by ever since, the aircraft has been quietly forgotten. It flew its last commercial service in Japan in , and, by , just one was left in service.
In more recent years, it has begun work on a regional aircraft known as the Mitsubishi SpaceJet. However, the ongoing coronavirus pandemic and testing taking longer than expected have caused the program to be paused. Perhaps you even flew on one back in the day? Let us know your thoughts and experiences in the comments!
Journalist - A graduate in German, Jake has a passion for aviation history, and enjoys sampling new carriers and aircraft even if doing so demands an unorthodox itinerary. A keen amateur photographer, he also recently reached the milestone of flying his th sector as a passenger. Based in Norwich, UK. Jake Hardiman Journalist - A graduate in German, Jake has a passion for aviation history, and enjoys sampling new carriers and aircraft even if doing so demands an unorthodox itinerary.
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