6 hours ago
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A twelvemonth since the tragic clang of Air India formation AI 171 that outgo 260 lives connected June 12, 2025, the Ministry of Civil Aviation (MoCA), Government of India, and its Air Accident Investigation Bureau, person strayed from their promised “transparent and factual” path. The lone portion of accusation that is disposable to america is the Preliminary Report that was published successful July 2025. The cryptic study has hidden pointers that are worthy highlighting, successful the lack of immoderate last report.
The flood of mendacious narratives dispersed by immoderate sections of mainstream media and societal media compel this writer to item issues. The accustomed inclination of the MoCA and the Directorate General of Civil Aviation (DGCA) to conceal the information and spot the blasted connected the aviator has, successful this case, taken a antithetic turn. Instead, determination is simply a defence of the skipper and playing possum successful the look of claims by immoderate pilots’ associations and “aviation illiterates” — arsenic a erstwhile National Transportation Safety Board (NTSB) researcher has described them successful a YouTube video — that the clang resulted from failures connected the portion of the hose and the craft manufacturer.
Media narratives versus facts
The archetypal wide denotation appears connected pages 12-13 of the preliminary study which says: “The guardant EAFR [Enhanced Airborne Flight Recorder] was located connected 16 June 2025 from the wreckage debris beside the Building F.” The guardant EAFR records some the integer formation information and dependable information from cockpit country mike. It is truthful evident that the AAIB has listened to the cockpit dependable recorder (CVR) signaling and alerted the MoCA, which successful crook informed the Ministry of Home Affairs (MHA). On the aforesaid day, June 16, citing quality inputs and a perceived threat, the MHA reportedly ordered X-category commando extortion for the caput of the AAIB. He continues to bask this extortion astatine taxpayers’ expense, adjacent arsenic the travelling nationalist and the families of the clang victims stay successful the dark.
Certain narratives successful the media and societal media person been connected the study of the substance power switches (FCS) having transitioned from tally to cutoff and past cut-off to tally aft respective seconds delay.
The usage of the connection “transitioning” successful the study is being bandied astir arsenic grounds of American power connected the report. What is being forgotten is the information that the FCS is simply a outpouring loaded power that has to beryllium lifted disconnected the tally slot, moved implicit the gross and dropped into the cut-off slot. The aforesaid enactment is required for moving the power from cutoff to run. These switches cannot beryllium moved by a bundle mistake oregon a powerfulness failure. The lone CVR connection successful the study mentions this: “one of the pilots is heard asking the different wherefore did helium cutoff. The different aviator responded that helium did not bash so.” The remainder of the CVR recordings were seemingly shared with the MoCA and the MHA for the menace perception.
The Government of India knew the facts connected June 16, 2025 and is inactive dragging its feet to supply closure to the affected families who are experiencing intelligence agony.
A reddish herring
The latest space that is occupying centre signifier is the Ram Air Turbine (RAT). Calculations astir erstwhile the RAT deployed successful formation and however this was owed to a large wiring responsibility are being utilized by funny parties to digress from the cardinal contented of who moved the FCS to chopped disconnected the engines. Page 14 of the study says that the “RAT hydraulic pump began supplying hydraulic unit astatine astir 08:08:47 UTC”, which is simply a wide denotation the RAT was deployed 5 seconds earlier, astir 08:08:42 UTC.
The study mentions that erstwhile the craft achieved the maximum recorded airspeed of 180 knots astatine astir 08:08:42 UTC, instantly thereafter, the Engine 1 and Engine 2 FCS moved from tally to cutoff presumption 1 aft different with a clip spread of 1 second.
When some engines were chopped off, 2 things would person happened immediately. The full instrumentality sheet successful beforehand of the copilot would person gone blank and the powerfulness proviso to the rear EAFR shut. The rear EAFR becomes a lame duck and immoderate information the investigators retrieve volition lone beryllium what is recorded anterior to that time. The existent backup of captious information would person been mislaid had the guardant EAFR information not been recovered.
The Boeing 787 Manual lists 4 conditions that effect successful the automatic deployment of RAT to supply backup. It besides mentions that the RAT tin beryllium deployed manually by pressing the RAM Air Turbine power connected the hydraulic panel. This volition beryllium recorded some connected the EAFR arsenic good arsenic the dependable recorded connected the CVR. The wide crushed wherefore RAT deployed earlier the engines were chopped disconnected volition beryllium evident connected some the EAFR and CVR recordings.
Under mean circumstances, erstwhile a large exigency takes spot connected take-off, the Captain indispensable instrumentality implicit the controls and the copilot reverts to aviator monitoring work adjacent if helium was the Pilot flying. The CVR volition intelligibly bespeak if that enactment took place. The EAFR seemingly records the formation controls of the copilot broadside moving during the full event. In the lawsuit of formation AI-171, the hold successful moving the FCS for the no. 1 and no. 2 engines, astatine 08:08:52 and 08:08:56, respectively, tin beryllium explained by the circumstances confronting the mediocre co-pilot: a blank screen, nary guidance, some engines without power, and the task of controlling the craft with his close manus portion attempting to restart the engines with his near hand.
For his debased acquisition connected the craft benignant and performing a manoeuvre which is ne'er fixed for copilots during training, First Officer Clive Kunder did a singular occupation successful steering the crippled craft distant from crowded areas wherever much lives would person been mislaid connected ground.
Closure requires the truth
There were 2 pilots connected board. The FCS were deliberately moved to chopped disconnected the engines. Only 1 of them could person done it and not a bundle mistake oregon a powerfulness strategy error. If the AAIB could person deciphered the CVR information to alert the MoCA and the MHA arsenic aboriginal arsenic June 16, 2025, sportfishing for excuses to deviate from the facts volition lone harm the credibility of the Indian aviation system.
The United States NTSB and the Air Accidents Investigation Branch of the United Kingdom person acold much acquisition successful deciphering the EAFR/Digital Flight Data Recorder and CVR information than the Indian AAIB oregon the DGCA. One hopes that the authorities successful India bash not resistance their feet and look the humiliation of the NTSB releasing its ain findings, arsenic it did successful the SilkAir (1997) and China Eastern (2022) fatal crashes, which yet established “Deliberate Human Intervention”.
The families of First Officer Kunder and each those who perished successful the clang connected June 12, 2025, merit closure to their intelligence agony.
Captain A. (Mohan) Ranganathan is simply a erstwhile hose teacher aviator and aviation information adviser. He is besides a erstwhile subordinate of the Civil Aviation Safety Advisory Council (CASAC), India
