use of required navigation performance (RNP) procedures in Indonesia, having successfully performed validation flights at the two terrain-challenged airports of Ambon and Manado. From 19 July 2011, Lion Air grounded 13 aircraft due to sanctions caused by bad on-time performance (OTP). The transportation ministry recorded that Lion Air's OTP of 66.45 percent was the worst of six airlines in an assessment conducted from January to April 2011 at 24 airports nationwide. On the other hand, airlines using Jakarta airport faced considerable delays to their schedules due to runway congestion. On 18 November 2011, the airline jointly announced with Boeing a record-setting order of 201 Boeing 737 MAX and 29 Boeing 737-900ER aircraft, setting the record for the world's biggest single order of 230 aircraft for a commercial airline worth $21.7 billion. In January 2012, the Transportation Ministry said that it sanctioned Lion Air because some of its pilots and crew members were found in recent months to be in possession of crystal methamphetamine. In late 2011 Muhammad Nasri and two other co-pilots were arrested at a party in Tangerang; in early 2012 a pilot was caught with crystal meth in Makassar. On 4 February 2012, another Lion Air pilot was arrested following a positive urinalysis test for use of methamphetamine; he was scheduled to fly the Surabaya-Makassar-Balikpapan—Surabaya flight hours later. The licenses of the pilots and crew were revoked. On 18 March 2013, Lion Air signed a contract to purchase 234 Airbus aircraft worth US$24 billion in France and witnessed directly by French President Francois Hollande. The ordered aircraft are types of A320 and A321. Lion Air established a full service airline with the name Batik Air, which started operating in 2013 using 737-900ER. Lion Air also signed a commitment with Boeing to order five Boeing 787 Dreamliner for this airline, and this made Lion Air the first Indonesian airline to order this type since Garuda Indonesia canceled its order for the 10 Dreamliners in 2010, and is expected to be sent in 2015. The airline has also considered ordering wide-body aircraft Airbus A330, but chose to buy 787. On 31 July 2015, Lion Air officially left INACA due to a mismatch with other members. In June 2016 Lion Group was removed from the list of blacklisted airlines to fly into the EU. During the COVID-19 pandemic in Indonesia, Lion Group suspended operations until 1 June. It suspended operations again