Allan J. McDonald

American aerospace engineer
Died on Tuesday March 9th 2021

Tweets related to Allan J. McDonald:

@ks7000: Allan J. McDonald, died March 6 at a hospital in Ogden, Utah. He was 83. The cause was comp… - 3 years ago

@Javieryminiyo: RT @GarciafXimo: 1/2 Muere Allan J. McDonald el ingeniero que no firmó el acuerdo del lanzamiento del transbordador Challenger que finalmen… - 3 years ago

@LageSure: RT @GarciafXimo: 1/2 Muere Allan J. McDonald el ingeniero que no firmó el acuerdo del lanzamiento del transbordador Challenger que finalmen… - 3 years ago

@PacoBurguera: RT @GarciafXimo: 1/2 Muere Allan J. McDonald el ingeniero que no firmó el acuerdo del lanzamiento del transbordador Challenger que finalmen… - 3 years ago

@maloney_esq: 🚀Allan J. McDonald tried to stop the Challenger space shuttle launch, citing possible effect of cold on its booster… - 3 years ago

@GarciafXimo: 1/2 Muere Allan J. McDonald el ingeniero que no firmó el acuerdo del lanzamiento del transbordador Challenger que f… - 3 years ago

@Halloran_J: RT @TGMetsFan98: 35 years ago, Allan McDonald had the confidence in himself and his engineering team to refuse to approve the launch of Spa… - 3 years ago

@calmlabar: RT @wilabar: “Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolable.” - Sydn… - 3 years ago

@wilabar: “Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolab… - 3 years ago

@DaRaykhman: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ChicksWithMDs: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@MEM217239634: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@josephmadigan: “Regret for things we did is tempered by time. But regret for things we did not do is inconsolable. That’s absolute… - 3 years ago

@PatrickCMiller: Allan McDonald’s Legacy And The Ethics Of Decision-Making - 3 years ago

@tongueofangels: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@alizardx: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ReaderCatMe: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@scottfreeactor: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@coremudgeon: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Melissa54584770: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ericserati68: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Sandra21977878: RT @DanDassow: @DrEricDing Engineer Allan J. McDonald clearly demonstrated that ethical decision making based on facts and science matters.… - 3 years ago

@Sandra21977878: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@CoreBears: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@J_Laurenti: This @NYTimes obit reminds us what happens when officials grovel to please political bosses. Engineer's veto of 198… - 3 years ago

@ThomasRenzy: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@TaylorR57417014: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Stonehenge68: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@AceBearstrom: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Cohlrabi: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@AthleticAnchovy: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@fbatista_nyc: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@heldnhisgrip: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@futuravocat: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@scism_cameron: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@locolocojohn: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@SeniorTaco78: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@VanSulli: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@23sandyjoy: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@lm_nolen: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@anarcurmudgeon: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@j_weathers: RT @pourmecoffee: RIP. If you haven't seen the Netflix Challenger doc; it's definitely worth a watch. "Allan McDonald Dies at 83; Tried to… - 3 years ago

@TKYSK8R: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@JibMonkey: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@hc_gnau: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Tonia98: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@fpallegra: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Lambri97: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@johnbirchman: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@DocJaniceL: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ChrisHeil1: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@chowbacca415: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@AndrewSchmidtFC: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@MartyONeill2020: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@jesparza2: RT @rcwhalen: Allan J. McDonald, an engineer who on a chilly January morning in 1986 tried to stop the launch of the Challenger space shutt… - 3 years ago

@GarrettCRW: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@bellaamarilla11: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Zoso771: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@SuzieVitela: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@TiredLilybelle: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@LLCoolA60: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@AndrewJWHaynes: RT @rcwhalen: Allan J. McDonald, an engineer who on a chilly January morning in 1986 tried to stop the launch of the Challenger space shutt… - 3 years ago

@BobStein_FT: RT @rcwhalen: Allan J. McDonald, an engineer who on a chilly January morning in 1986 tried to stop the launch of the Challenger space shutt… - 3 years ago

@rcwhalen: Allan J. McDonald, an engineer who on a chilly January morning in 1986 tried to stop the launch of the Challenger s… - 3 years ago

@PithyCherub: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@TrocarRogue: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@tinazaffino: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@win_clouds: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@jidgeMist: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@LoserMcTool: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@kattastic99: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@nichols_lindy: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@WMT3n: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@gamescan: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ChrisMaslanka: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@JessicaMulein: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Raine0801: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@paleautumnmoon: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@jayneJEB: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@altijdennooit: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@AnitaVosmer: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@BillUminski: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@dropoutnation: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Mirium1: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Artistwhodreams: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@DocDarnell: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ALyn722: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@PoliticalBee: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@eric_piekarski: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@AmbriaBella: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@dblduh: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@DladyPatriot: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@frankenfurter__: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@A_Research_Guru: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@SleepyEyedJudie: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@johndotbastable: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ZTLFIRE: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@NogasRetired: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@graysing: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@morbital: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ampkai: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Simon67Jenkins: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@SunshineandHap: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@MariniteA: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@one4allmankind: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@donnalburnell: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@av8ramit24: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@jsillyhead: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@hushnowlilbaby: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@whybeet: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@sxpert1: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@ellenkmcd: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@inezsneks: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@FernandoLongoOZ: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@CPUprogramme: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@david_hemond: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@costilla: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@R31611832: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@BrainClouds: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@RenaudGuerin: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@M322233: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@LaCuatrina: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@RealGravitas: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@LindaMeredithFL: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@Washerein17: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@rshields37: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@MarleneDermer: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@donna_spackman: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@PerpetualWinger: RT @DrEricDing: Engineer Allan J. McDonald, who in 1986 tried to stop the launch of the Challenger space shuttle, citing the effect of the… - 3 years ago

@j_andersen2: RT @NYTScience: The day before the Challenger disaster, Allan McDonald and several of his fellow engineers at the company that made the shu… - 3 years ago

@PamelaMansonSLC: RT @KUTV2News: Utah whistleblower Allan J. McDonald - who spoke up during hearings on space shuttle disaster - has died. He was 83. WATCH… - 3 years ago

@sampsonnews: RT @KUTV2News: Utah whistleblower Allan J. McDonald - who spoke up during hearings on space shuttle disaster - has died. He was 83. WATCH… - 3 years ago

@KUTV2News: Utah whistleblower Allan J. McDonald - who spoke up during hearings on space shuttle disaster - has died. He was 83… - 3 years ago

@thevaliantway: Allan J. McDonald was a NASA engineer and the inspiration for our Challenger Rule that states a team member can pau… - 3 years ago

@deadpeoplecom: Rest in peace Allan J. McDonald - #AllanJMcDonald #Allan #J.McDonald #rip - 3 years ago

@komputerow: RT @InfZakladowy: nie dolecieć. I że wtedy wszyscy kosmonauci giną, razem z tą nauczycielką, która miała poprowadzić pierwszą zdalną (heh)… - 3 years ago

@ananddas: RT @nealrichter: R.I.P Allan J McDonald, Engineer and @montanastatecoe Alumni from Morton Thiokol who tried to stop the Challenger launch.… - 3 years ago

@PachowiczPiotr: RT @InfZakladowy: nie dolecieć. I że wtedy wszyscy kosmonauci giną, razem z tą nauczycielką, która miała poprowadzić pierwszą zdalną (heh)… - 3 years ago

@InfZakladowy: nie dolecieć. I że wtedy wszyscy kosmonauci giną, razem z tą nauczycielką, która miała poprowadzić pierwszą zdalną… - 3 years ago

@J_Paleo_: RT @MorningEdition: Allan McDonald urged delaying the launch of the space shuttle Challenger before it exploded in 1986. He has died at age… - 3 years ago

@nealrichter: R.I.P Allan J McDonald, Engineer and @montanastatecoe Alumni from Morton Thiokol who tried to stop the Challenger l… - 3 years ago

@teare_j: RT @SangerNYT: On a cold afternoon in Feb., 1986 — 35 years ago — I reached Allan McDonald, an engineer at Morton Thiokol, and convinced hi… - 3 years ago

@ActionafFans: Rest In Peace, Allan J. McDonald. Now that was a REAL Hero Remembering Allan McDonald: He Refused To Approve Chall… - 3 years ago

@dani_npe: Allan McDonald, Who Refused To Approve Shuttle Challenger Launch, Dead At 83 quoted Sydney J. Harris "Regret for… - 3 years ago

@beigealien: RT @dhh: "Regret for things we did is tempered by time. But regret for things we did not do is inconsolable." – Allan McDonald paraphrasing… - 3 years ago

@dhh: "Regret for things we did is tempered by time. But regret for things we did not do is inconsolable." – Allan McDona… - 3 years ago

@JayAlver: Today’s Gold Star of Excellence goes to Allan J. McDonald, director of Thiokol’s Space Shuttle Solid Rocket Motor P… - 3 years ago

@MatthewCable6: RT @saddamscribe: This is David Sanger’s story in which he interviewed Morton Thiokol engineer Allan J. McDonald, who argued against launch… - 3 years ago

@SmileSimplify: RT @saddamscribe: This is David Sanger’s story in which he interviewed Morton Thiokol engineer Allan J. McDonald, who argued against launch… - 3 years ago

@saddamscribe: This is David Sanger’s story in which he interviewed Morton Thiokol engineer Allan J. McDonald, who argued against… - 3 years ago

@SaraBuchan: "Always, always do the right thing at the right time for the right reason with the right people, and you will have… - 3 years ago

@J_LaCroix: #hero Remembering Allan McDonald: He Refused To Approve Challenger Launch, Exposed Cover-Up - NPR - 3 years ago

@nullAPI: "In the ensuing months, after watching the space shuttle Challenger disintegrate 72 seconds into a mission that nev… - 3 years ago