(File photo) The pilot of Iran Air's new Airbus plane waves a national flag after landing at Mehrabad International Airport in Tehran, Iran on Jan. 12, 2017. (AP)

TEHRAN, June 2 (Xinhua) -- The planes of Iranian airliners are expected to be refused fuel at some foreign airports under U.S. impending new sanctions, Iran's flag carrier Iran Air said Saturday.

The news was revealed by Farzaneh Sharafbafi, chief executive officer of Iran Air, during her meeting with judicial officials over frequent Iranian flight delays, Tasnim news agency reported.

The average age of Iran's fleet of passenger planes is 24 years, she said, adding that the conditions of civil aviation industry in Iraq, Afghanistan and other neighbors are better than in Iran.

People should not expect too much from an industry not well supported in the past, Sharafbafi lamented.

Iran will face further difficulties in renewing simple aircraft components as the U.S. has announced the imposition of new sanctions in the next months, Sharafbafi said.

The country will have to deliver cash in suitcases for fuel supply, she noted.

Over the past two years, Iran has held intensive talks with major aircraft manufacturers, including Boeing, Airbus and ATR, to renovate its aging fleet of passenger planes after the implementation of the landmark Iranian nuclear deal in January 2016.

Iran has signed major contracts to buy 118 commercial planes from Airbus, 100 from Boeing, as well as several ATR turboprops.

However, the U.S. abrupt withdrawal from the nuclear deal, along with its decision to slap new sanctions on Iran, has discouraged these aviation giants from continuing working with the Islamic republic.