* Jet yet to receive bailout funds from banks -source
* Airline operating 26-28 planes out of 119-strong fleet
* Some lessors have not been paid for 5-6 months -source (Adds details from sources on aircraft grounding, payments to lessors)
NEW DELHI, April 3 (Reuters) - India's Jet Airways said it has grounded more planes after failing to pay lessors, as the debt-laden carrier - which also owes salaries to pilots and crew - works to secure bailout funds promised by state-run banks.
Jet last month was rescued by State Bank of India (SBI) and other lenders, which will temporarily own a majority stake in the airline and extend a fresh loan of $218 million.
However, Jet is yet to receive any loan money and employees have not yet been paid for the month of March, said a person with direct knowledge of the matter.
Once India's leading full-service carrier, Jet's operational fleet stood at about 26 to 28 airplanes as of Wednesday versus 119 planes last year, two sources said.
At least 69 aircraft have been grounded due to money owed to lessors, showed stock exchange filings by Jet, while the remainder are out of service for maintenance, said one of the sources.
Some lessors with direct knowledge of the matter said Jet had told them it would pay for one month's rental and maintenance by the end of last week, and that no payment had been received.
They said when they asked Jet about payment, they were told only that the airline was addressing the matter.
"We already have five to six months of delinquencies and we were promised just one month and even that hasn't been paid. This is very disappointing," said one of the people, who declined to be identified due to the sensitivity of the matter.
Jet did not respond to requests for comment.
(For an interactive graphic on Jet's fleet grounding, click here https://tmsnrt.rs/2IdxKb7.)
After the bailout was announced, Jet told India's aviation regulator it would not ground any more planes and would fly 40 more aircraft by the end of April, taking its operational fleet to 75 planes.
But late on Tuesday, Jet said it grounded 15 planes, sending its stock down as much as 4 percent in early Wednesday trade. The stock had shed more than half of its value in a year as of Tuesday's close.
With a smaller operating fleet, Jet has given pilots and cabin crew the option of flexible working days and taking extended leave with or without pay, showed a note to staff reviewed by Reuters.
(Reporting by Aditi Shah and Tanvi Mehta; Additional reporting by Anshuman Daga in SINGAPORE and Arnab Paul in BENGALURU; Editing by Muralikumar Anantharaman and Christopher Cushing)