MMRCA 2.0 Ep-6 | RFI Technical Requirements For OEMs



National Defence Bureau,
New Delhi, 07 November 2019

So, we have discussed many aspects of technical parameters as listed in MMRCA 2.0. Still, survivavility, interchangeability, accessibility, servicing requirements, reliability, Servicing Periodicity, Obsolescence Management Plan, Simulator/ Ground Training, Ground Equipment Ground Equipment (GHE) Support (GSE)/ Handling, Standardization, Logistic Support, publication, Airworthiness Certification are topics which we will discuss in detail in this episode of MMRCA 2.0 news web series.

Survivability (System Redundancy)

(a) Is there adequate redundancy for safe recovery of aircraft with at least up to two levels of failures in FBW system? Overall probability of loss of control due to FBW failure should be less than 10-7 per flight hour?

(b) In case of total electrical failure, what is the duration of safe flight?

(c) Systems/ parts considered critical should have adequate redundancy.



(a) What is the degree of interchangeability on the aircraft? Will all major components/ parts / panels, sub-assemblies, including canopy, Ejection Seat be fully interchangeable between aircraft?

(b) Is the engine/s modular in design with separate hot and cold section modules such as low pressure compressor, high pressure compressor, combustion chamber, turbine, exhaust nozzle etc?

(c) Are the engine/s modules (including engine sub- assemblies) replaceable/ interchangeable at „I‟ level engine repair and is the engine performance testing required at „I‟ level?

(d) Is the OEM willing to provide unilateral upgrade capability to IAF for integration of future indigenous equipment?


(a) Are all components/ parts requiring inspection/ servicing/ repairs easily accessible and permit inspection, servicing, removal or installation?

(b) Are the inspection/ access panels provided with quick release fasteners?

Servicing Requirements

(a) What are the external feeds that are required to service and operate the aircraft?

(b) Does the aircraft have Built-in-Test Equipment (BITE) and system check facility to ascertain its suitability for flight without any specialized equipment/tester/gauge?

(c) What is the coverage of BITE?

(d) Does the maintenance philosophy of the aircraft permit „on-condition‟ maintenance?

(e) Does the FADEC have provision for retrieval of engine parameters / failure mode, during its operation by ground crew, through a control test both in dynamic/ static mode? Does the control test set have a provision for engine fault diagnosis and rectification?

(f) Does the maintenance philosophy permit all „O‟ level (flight line) servicing operations without special maintenance ladders, stands and other special ground equipment?

(g) What is the minimum periodicity of first and subsequent scheduled maintenance in flying hours and time period?

(h) What is the duration, at „O‟ level, to replace / remove and install an engine and clear the aircraft? Specify time and manpower requirement.

(j) What are servicing man hours per flight hour for scheduled first and second line servicing?

(k) Is there a provision for cooling of avionics spaces while testing and operation on ground for extended periods without engine power?

(l) Does the aircraft have a computer based health monitoring and maintenance management system for comprehensive management of maintenance activities for the aircraft?

(m) Pilot Turn Round Servicing (PTRS)

(i) Is it possible to carry out PTRS by refuelling alone? Is any servicing support equipment required for PTRS?

(ii) Are suitable check-out points available to enable quick confirmation of flight worthiness of aircraft?

(iii) What is the time required for PTRS (by a single pilot)?


(a) What is the reliability of the aircraft systems for a ten hour mission?

(b) What is the MTBF of major systems for maintenance under all Indian environmental conditions? Specify values for each system.

(c) Do the aircraft systems provide high operational reliability and have necessary reliability monitoring provisions?

(d) Does the aircraft have any Reliability and Maintainability Program plan which details the methods, definitions, standards and timescales for the in-service phase?

Servicing Periodicity

(a) What is the maximum flying effort achievable while


operating the aircraft from forward airfields without the need for routine „I‟ level servicing?

(b) Is the life of aircraft and engine/s monitored on Fatigue Cycles? Provide details.

(c) Is engine/s „O‟ & „I‟ level servicing based on on- condition maintenance philosophy?

(d) What is the Mean Time to Repair (MTTR) for „O‟ level servicing?

Obsolescence Management Plan

What is the total cost for obsolescence management (if applicable) for the 15 years life of the aircraft? This cost should be indicated along with the overall ROM cost for procurement (Appendix C).

Simulator/ Ground Training

(a) Where and what degree of training will the vendor provide to pilots and technicians?

(b) Vendors to indicate the availability of following training aids for the aircraft:-

(i) Fixed base Full Mission Simulators (FMS)

(ii) Cockpit Procedure Trainers (CPT)

(iii) Aircraft Systems Maintenance Simulator (ASMS)

(iv) Engine Maintenance Systems Simulator (EMSS)

(v) Computer Based Training (CBT) Aid for technical training (TETTRA) of technicians?

(vi) Is there any other modern training aid/facility to train economically? Specify facility and savings in cost/time.

(vii) Will unlimited site license for all training software be provided?

(c) Can these training aids be maintained by OEM under Annual Maintenance plan for initial 10 Yrs or more?

Ground Equipment Ground Equipment (GHE) Support (GSE)/ Handling

What are GSE/ GHE/ role equipment/ test/ servicing equipment etc that would be offered for operations of the aircraft?

Electro–Magnetic Compatibility(EMC) and/Electro–Magnetic Interference (EMI)

Are the systems on board the aircraft adequately EMI & EMC protected and do the systems comply with the relevant military standards? Specify the standards.


(a) Which are the applicable military and other quality standards met in the design development and production of the aircraft and equipment? Specify the standards.

(b) “Metric” system should be used in maintenance, and other associated systems used for maintenance.

(c) It is desirable that the aircraft flying and associated parameters displayed in the cockpit are in “Anglo-Saxon” system? Parameters and their desired units are listed below:

(i) Flying parameters

Velocity in knot

Altitude in feet

ROC/ROD in feet per minute

(ii) Distance in nm (distance >1nm) and in meters (distance <1nm)

(iii) Weight (eg fuel/aircraft) in kg

(iv) Volume of fluids (hydraulic/oil etc) in liters (v) Pressure (eg Hydraulic) in Bar

Logistic Support

Performance Based Logistics:

(a) What is the ROM cost of PBL for an aircraft availability of 75% and an average flying effort of 150 hrs/ aircraft/ year for a period of ten years? (150 hr /aircraft/year is equivalent to 225 hr per Sqn/ month, for a Sqnwith18 aircraft.)

(b) What is the maximum duration which is possible to fly during one month over a rolling period of six months under this PBL or what is the maximum activity flying per month per Sqn which could be repeated during a maximum consecutive period of three months over a rolling period of six months? Specify any other condition/s.


(a) Would the vendor supply all publications including Flight Manuals, technical description manuals, servicing schedules, wiring diagrams, illustrated spare parts catalogue, structural repair manuals etc, pertaining to the aircraft, its sub-systems?

(b) Are all document sets/ publications in English in conformity with latest standards for technical publications? Specify the standards.

(c) Would amendments and revisions in publications concerning maintenance and operations be provided regularly?

Airworthiness Certification

(a) Does the aircraft conform to the current governing military airworthiness regulations of the country of origin/ US standards? Specify the standard/s.

(b) Will the vendor provision service bulletins, service instructions and special technical instructions affecting the airworthiness of the aircraft on a regular basis?

Hope you like this video. If yes, give it a thumbs up, do share and subscribe National Defence. I will see you soon in another episode to discuss operational characterstics. Till then stay fit, stay healthy and stay happy. Thanks for watching National Defence. Jai Hind. Vande Matram.

Subscribe National Defence on YouTube. Click here!

Related posts