The IAF’s first LCA Tejas crash was allegedly caused by an engine seizure, according to officials.

An ongoing investigation into the first-ever crash of the Indian Air Force’s light combat aircraft (LCA-Mk-1) Tejas, which occurred three months ago, suggests that engine seizure is the most likely cause of the accident, according to two officials familiar with the matter on Monday.

The domestically produced single-engine fighter jet crashed near Jaisalmer in Rajasthan on March 12, shortly after participating in a tri-services exercise showcasing India’s progress towards self-reliance in defense manufacturing. The pilot safely ejected.

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At the outset, Tejas lacked a simulator and a trainer aircraft for initial training. However, pilots were provided with simulation trials before flying the Tejas aircraft. Initial reviews indicated stability during flight, with the aircraft maintaining a straight glide. However, there was an incident where the aircraft experienced an engine malfunction, prompting the pilot to eject safely.

Pilot Safe Ejections

The decision to eject was made as a precautionary measure, considering the aircraft’s low altitude and steep descent angle. With the aircraft’s altitude dropping rapidly, attempting to balance and land it was deemed too risky. Ejecting ensured the pilot’s safety, as deploying a parachute at such low altitudes could have been disastrous.

LCA Tejas engine Issue

Investigations revealed the engine malfunction was likely due to lubrication issues or other technical faults. Such split-second decisions underscore the potentially catastrophic outcomes that can result from technical failures.

The pilot involved was highly experienced and well-trained for airshow displays, suggesting timely decision-making. Nevertheless, accidents can stem from technical glitches, human errors, or unforeseen circumstances like bird strikes.

Following the crash, safety checks were conducted on the entire LCA Mk-1 fleet, revealing no safety issues with the aircraft,” said the second official, who also requested anonymity. The LCA Mk-1 is equipped with the F404 engine from US firm GE Aerospace.

This engine failure ended the LCA Mk-1’s previously accident-free flying record.

In February 2021, the IAF ordered 83 Mk-1A fighters for ₹48,000 crore and plans to purchase an additional 97 Mk-1As at an estimated cost of ₹67,000 crore.