At least 28 of Jet Airways’ aircraft have now been grounded for defaults on lease payments, following the latest grounding of three aircraft on 7 March.

Consistent with earlier disclosures, the airline repeated its claim that it is “actively engaged with all its aircraft lessors”, and that they “have been supportive” of its efforts to increase its liquidity.

The lessors and aircraft involved in the latest grounding were not disclosed.

FLY Leasing has confirmed that three Boeing 737-800s it leases to Jet are among the grounded aircraft, but it has not moved to terminate the leases as it waits on the carrier to move forward with its restructuring plan. It has however signalled that it may take back the jets if the plan does not progress by the end of the month.

GECAS, BOC Aviation and MC Aviation Partners are among a wide group of lessors that manage aircraft in Jet’s fleet, according to Cirium’s Fleets Analyzer.

The database shows that Jet has 49 aircraft in storage, including 30 737-800s and eight 737 Max 8s. It still has 72 aircraft in service.

The stored aircraft include three Max 8s that are at Boeing Field/King County International airport, likely indicating that they have not entered service yet. Three 737-800s also appear to be receiving end-of-lease maintenance at Seletar airport in Singapore.

Indian media reports have suggested that, in addition to the 28 jets grounded for lease defaults, a number of other aircraft in Jet’s fleet have also been grounded for technical reasons.