SEOUL: A day after the deadliest plane accident of South Korea, Jeju Air said that a flight from Seoul was forced to return on Monday after it faced a landing gear issue. The Boeing 737-800 involved in the fresh incident was the same model as the Jeju Air airliner that crashed after coming down without its landing gear engaged on Sunday, killing 179 people. Jeju Air Flight 7C101, which departed Seoul's Gimpo International Airport for Jeju island "at around 6:37am, returned to Gimpo at 7:25am" after a landing gear issue was detected shortly after takeoff, the South Korean airline said. "Shortly after takeoff, a signal indicating a landing gear issue was detected on the aircraft's monitoring system," Song Kyung-hoon, head of the management support office at Jeju Air, told a news conference. "At 6:57am, the captain communicated with ground control, and after taking additional measures, the landing gear returned to normal operation. However, the decision was made to return to the airport for a thorough inspection of the aircraft." Local media reported that 21 passengers chose not to board an alternate flight to Jeju, citing concerns over safety and other reasons. Jeju Air’s 41 plane fleet includes 39 Boeing 737-800 aircraft. Seoul said on Monday it would conduct a special inspection of all 101 Boeing 737-800 planes in operation in the country, with US investigators, possibly including from plane manufacturer Boeing, joining the probe into the crash. "We are reviewing plans to conduct a special inspection on B737-800 aircraft," said Joo Jong-wan, head of the aviation policy bureau at the South Korean transport ministry. Joo added that the government plans to "implement rigorous aviation safety inspections in response to the (landing gear) incidents". In Sunday's crash at Muan, the Boeing 737-800 carrying 181 people from Thailand to South Korea made a mayday call and belly-landed before crashing into a barrier and bursting into flames. Everyone on board Jeju Air Flight 2216 was killed, save two flight attendants pulled from the wreckage.