Washington: Boeing announced Sunday that some of its medium-haul 737s, including the 737 MAX 8, could have a defective wing part, but that there had been no reports of flight issues linked to the defect.

The American aviation giant, which has been rocked by an unprecedented crisis after its entire 737 MAX 8 fleet was grounded in mid-March, said a subcontractor informed it of problems with a batch of a part involved in deploying the wings' leading edge.

The leading edge of an aircraft is key to takeoff and landing because it is meant to improve the wing's drag and therefore the jet's aerodynamics.

Boeing said in a statement that it had relayed the defective lot number to aircraft owners so they can inspect the parts in question.

If operators find the defective parts on their aircraft, they should replace them before putting the plane back in service, the company said.

"This is a device considered critical because if the leading edge slats don't deploy symmetrically, there could be a lift differential that can be dangerous especially on takeoff and landing," one aeronautics expert told AFP on condition of anonymity.

The planes were grounded after a combined 346 people died in two deadly crashes, the first in Indonesia in October followed by one in Ethiopia in March.

Long considered a "gold standard" internationally, the US Federal Aviation Administration's reputation has suffered amid scrutiny of its oversight process and reports it allowed Boeing to effectively self-certify some features of the MAX.

Boeing is working on a software fix that will allow the MAX 8 to begin flying again, but differences have arisen between the United States and Canada on how to train pilots on the software after the update.

Washington believes training on computers or tablets is sufficient for seasoned pilots, but Ottawa wants to require training on flight simulators.

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Balrampur/Chhattisgarh (PTI): Enthusiastic voters reached polling booths trekking steep hilly paths, crossing a river and even on a horse to cast their votes in remote areas of the tribal-dominated Balrampur district in Chhattisgarh on Tuesday, officials said.

Balrampur district falls under the Surguja Lok Sabha constituency which was among seven seats where polling was held in third and last phase of Lok Sabha elections in the state. The Surguja Lok Sabha recorded 74.59 per cent voting, as per the Turnout application.

Voters, belonging to Pahadi Korva, a particularly vulnerable tribal group, including Rajesh, Madan, Sukhu, Gopal and Nandlal, crossed a river to exercise their franchise at a polling booth in village panchayat Amera under the Samri assembly constituency, a government official said.

Similarly, electors, including Lakhan Nagesia, Sahu, Phulsai and Kalesh of Bachwar village under the Ramanujganj assembly constituency walked through hilly terrain for about two hours covering 8 kms to reach a polling booth and cast their vote, he said. A voter, Parimal Dey, reached a polling booth in Sagarpur village under the Ramanujganj assembly seat on a horse, the official said. Dey is a cattle rearer who owns 150 goats.

Two hyper sensitive polling booths -- Chunchuna and Pundag -- located in a Naxal-affected area of the district which shares border with Jharkhand, also recorded significant turnout, he said. The two booths are located in the Samri assembly constituency.

"Special security arrangements were put in place in this area to ensure peaceful voting. Voters of Chunchuna and Pudang ensured their participation in the great festival of democracy braving Naxalite threat," he said. The Chunchuna polling booth has 767 voters and it recorded 84.35 per cent turnout, while Pundag has 595 electors and it registered a turnout of 72.44 per cent till 5 pm, the official added.