Since the early 1970's, the Division has been overhauling
Aero Engines to make fighter Aircraft flight-worthy again
for the Indian Air Force.
The Division follows the 'Flow Line Group Technology' with
the Engine parts being dismantled, viewed and loaded to
different work centres.
Regular follow-up through PC ensures timely completion of
The stripped components are subject to detailed
micrometric and Non Destructive Testing (NDT) checks. Repair
and refurbishing of worn-out parts and sub-assemblies are
undertaken by skilled workmen.
Repairs and Refurbishing Processes include welding, hard
alloy coatings, vibro-tumbling, micro-shot peening,
ultrasonic strain hardening, nickel alloy powder coating and
a large number of protective coatings. Assemblies and
sub-assemblies undergo rigorous functional tests on various
Hydraulic, Fuel and Electrical Rigs.
Quality control checks are carried out using various NDT
methods, like X-ray, Magna-flux, Dye-penetrant check and
ultrasonic inspection besides other conventional techniques.
Overhaul of accessories is carried out in environmentally
controlled rooms. All the accessories after overhaul are
subjected to stringent tests on test rigs.
Every manufactured / overhauled Engine undergoes rigorous
tests on Engine test beds that simulate all flight
The preliminary and final acceptance test, hot test,
endurance test and gas dynamic stability tests are conducted
through computerised controls.
Electronically assisted throttle, digital and analog
read-outs help get real-time simultaneous data and engine
parameters during R-29B and RD-33 Engine testing.