Question: Aftermath was based on a real life midair plane collision that happened on what date?

Context paragraphs:
Plane of immanence: Plane of immanence (French: "plan d'immanence" ) is a founding concept in the metaphysics or ontology of French philosopher Gilles Deleuze.  Immanence, meaning "existing or remaining within" generally offers a relative opposition to transcendence, that which is beyond or outside.  Deleuze rejects the idea that life and creation are opposed to death and non-creation.  He instead conceives of a plane of immanence that already includes life and death.  "Deleuze refuses to see deviations, redundancies, destructions, cruelties or contingency as accidents that befall or lie outside life; life and death were aspects of desire or the plane of immanence."  This plane is a pure immanence, an unqualified immersion or embeddedness, an immanence which denies transcendence as a "real distinction", Cartesian or otherwise.  Pure immanence is thus often referred to as a pure plane, an infinite field or smooth space without substantial or constitutive division.  In his final essay entitled "Immanence: A Life", Deleuze writes: "It is only when immanence is no longer immanence to anything other than itself that we can speak of a plane of immanence."

A Maverick Heart: A Maverick Heart Between Love And Life is a 2013 novel written by Ravindra Shukla.  Ravindra Shukla is a graduate of IIT-Bombay.  The book is based on the real life events; and what happened at the IIT campus while he was studying, what happened in the US corporate world (both Wall Street and Silicon Valley) and what's happening now in India, the current social-political revolution led by the youth.

1986 Cerritos mid-air collision: The 1986 Cerritos midair collision was a plane crash that occurred over the Los Angeles suburb of Cerritos, California, on Sunday August 31, 1986.  It occurred when Aeroméxico Flight 498, a McDonnell-Douglas DC-9, was clipped by N4891F, a Piper PA-28-181 Archer owned by the Kramer family, while descending into Los Angeles International Airport, killing all 67 people on both aircraft and an additional 15 people on the ground.  In addition, eight people on the ground sustained minor injuries from the crash.  Blame was allocated equally between the Federal Aviation Administration and the pilot of the Piper.  The DC-9 was found not to be at fault.

Überlingen mid-air collision: On 1 July 2002, Bashkirian Airlines Flight 2937, a Tupolev Tu-154 passenger jet, and DHL Flight 611, a Boeing 757 cargo jet, collided in mid-air over Überlingen, a southern German town on Lake Constance, at 23:35 local time.  All 69 passengers and crew aboard the Tu-154 and the two crew members aboard the Boeing 757 were killed.

Aftermath (2017 film): Aftermath (originally titled 478) is a 2017 American drama thriller film directed by Elliott Lester and written by Javier Gullón.  The film stars Arnold Schwarzenegger, Scoot McNairy, Maggie Grace and Martin Donovan.  The film was released on April 7, 2017 by Lionsgate Premiere.  The film is based on the Überlingen mid-air collision though the names, places and incidents were changed.

Lifelike experience: "Lifelike" is an adjective that relates to anything that simulates real life, in accordance with its laws.  Its goal is to immerse individuals into what is called a lifelike experience.  It gets as close as possible to real life behavior, appearance, senses, etc., therefore enabling its subject to experience what is happening as if it were real.  In other words, simulating reality with its physical laws is the objective of lifelike experience.

Rirura Riruha: "RIRURA RIRUHA [リルラ リルハ]" (also known as "Real Life Real Heart") is the third single by Japanese pop singer Kaela Kimura, and the first from her album "Circle".  Released March 30, 2005, it peaked at number three on the Japan Oricon singles chart, Kimura's highest charting single to date.  By the end of 2005, Real Life Real Heart had sold 117,299 copies.

I Hope They Serve Beer in Hell (film): I Hope They Serve Beer in Hell is a 2009 American independent comedy film loosely based on the work and persona of writer Tucker Max, who co-wrote the screenplay.  In an interview with "Shave Magazine" Max explained that the film is not "a direct recount or retelling.  It says it is based on true events because it is.  Basically, every scene in the movie happened in real life in one way or another but it happened in a different time or time frame.  But pretty much every single thing happened."  The film was directed by Bob Gosse and stars Matt Czuchry as Max.  It was produced by Darko Entertainment and distributed by Freestyle Releasing.  Max had said previously that sequels were possible if the initial film found financial success.

Real Life with Jane Pauley: Real Life with Jane Pauley was a newsmagazine television program aired in the United States by NBC from 1990 to 1991.  "Real Life with Jane Pauley" seemed to be presented as an answer to both critics and members of the general public to the frequently-repeated viewpoint that "television news never seems to show anything positive".  "Real Life" focused on positive, human interest-type stories and occasional celebrity profiles.  Jane Pauley also presented less uplifting but still-lightweight features as well, such as a feature focusing on how less than 20% of the people who owned VCRs at the time actually knew how to program them.  Boyd Matson was also featured as a correspondent; his reports featured stories on out of the way places.

The Great Plane Robbery (1940 film): The Great Plane Robbery (aka The Great Plane Robber) is a 1940 crime-adventure B film directed by Lewis D. Collins.  Collins was more often associated with directing serials for Universal and Columbia Pictures.  It stars Jack Holt, Stanley Fields and Noel Madison.  Though typical of the melodramas that Holt made after transitioning from silent screen epics, western and adventure films were his forte.  Reviewer Hal Erickson found it ironic that Holt, who in real life had a fear of flying, starred in so many aviation-oriented films.  It was written by Albert DeMond from a story by Harold Greene.

Supporting paragraphs: Aftermath (2017 film) Überlingen mid-air collision
Answer: 1 July 2002