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American Airlines Flight 191 (May 25, 1979)

planecrashCVRs
Oct 27th, 2019
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  1. Date: May 25, 1979
  2. Passengers: 258
  3. Crew: 13
  4. Fatalities: 271
  5. Ground fatalities: 2
  6. Total fatalities: 273
  7. Cause: “...asymmetrical stall and the ensuing roll of the aircraft because of the uncommanded retraction of the left wing outboard leading edge slats and the loss of stall warning and slat disagreement indication systems resulting from maintenance-induced damage leading to the separation of the No. 1 engine and pylon assembly at a critical point during takeoff. The separation resulted from damage by improper maintenance procedures which led to failure of the pylon structure.”
  8.  
  9.  
  10. Legend:
  11. CAM Voice transmitted from cockpit area microphone
  12. PA Voice transmitted from public address system
  13. RDO Radio transmission from accident aircraft
  14. INT Intercom
  15. AG American Ground
  16. TWR Chicago Tower
  17. CGC Chicago Ground Control
  18. RC Ramp Control
  19. CLD Clearance delivery
  20. LC Load control
  21. -1 Voice identified as captain
  22. -2 Voice identified as first officer
  23. -3 Voice identified as flight engineer
  24. -4 Voice specified but not identified?
  25. -? Voice unidentified
  26. * Unintelligible word
  27. @ Non-pertinent word
  28. # Expletive
  29. ( ) Questionable insertion
  30. (( )) Editorial insertion
  31. ... Pause
  32. Times expressed in CDT
  33.  
  34.  
  35. ---
  36.  
  37.  
  38. 1455:09 CAM-2 Talking about yah know testing the thing and why, the last time I was in school they were talking about the importance of those little beauties, if one of those things is out, doesn't light up when you test it, it means that the valve is closed and your (flight) controls *
  39. CAM-? Yeah you got to have one of those pumps
  40. CAM-? Yeah
  41. CAM-? Not the pumps, it's the ah
  42. CAM-? *
  43. CAM-? Work on it
  44. CAM-? *
  45.  
  46. 1455:31 CAM-2 So be sure that you always test that
  47.  
  48. 1455:37 AG Release the brakes
  49. INT-1 Brakes released
  50. CAM-1 We're ready to start and
  51. AG And you're clear to start all engines
  52. INT-1 Clear to start
  53. RDO ((Sound of two clicks))
  54. CAM-1 Cranking three
  55.  
  56. 1455:43 CAM-? Thirty six
  57. CAM-2 Haven't got clearance
  58.  
  59. 1456:00 RDO-2 American one ninety one is pushing kilo five
  60. RC One nine one go ahead and push ((extraneous radio on channel four))
  61. CAM-2 Thanks (he says) go ahead and push)
  62.  
  63. 1456:12 CAM-2 That was nice of him
  64. CAM-2 At least he's watching
  65. CAM-1 Afraid so
  66. CAM-1 Lights out
  67. CAM-1 One
  68.  
  69. 1456:43 CAM-2 What are you doing Al?
  70. CAM-2 They all (call) back there? ((the word is slightly obscured))
  71. CAM-3 * problem (back there)
  72. CAM-3 Trying to fix it
  73.  
  74. 1456:50 CAM-? Need a little air?
  75. CAM-? Huh
  76. CAM-1 Naw I'm talking about passenger air
  77. CAM-3 Oh
  78.  
  79. 1457:06 CAM-2 All full back there are they
  80. CAM-4 Yeah as far as I can tell
  81.  
  82. 1457:13 AG Park the brakes
  83. INT-1 Brakes parked
  84. CAM-1 Cranking two
  85. AG Watch for the signals straight ahead and have a good flight
  86. INT-1 Adios
  87. AG Good day
  88. RDO-3 One nine one's out at five six
  89. RC Thank you one nine one
  90. RDO-3 One nine one's standing by
  91.  
  92. 1457:47 CAM-1 I'm not showing any fuel flow on number two, I don't know what going on, but it's lighting
  93.  
  94. 1458:01 CAM-1 Ready to taxi
  95.  
  96. 1458:05 RDO-2 American heavy one nine one taxi
  97.  
  98. 1458:06 CLD Monitor ground point seven five
  99. RDO ((extraneous radio calls from other aircraft))
  100.  
  101. 1458:11 RDO-2 American heavy one nine one taxi
  102.  
  103. 1458:18 CLD Who else, American one ninety one
  104.  
  105. 1458:20 RDO-2 Affirm-
  106.  
  107. 1458:21 CLD Okay American one ninety one heavy monitor ground point seven five
  108.  
  109. 1458:24 RDO-2 ('kay)
  110.  
  111. 1458:28 CAM-1 How about a circuit breaker for number two fuel flow
  112. RDO ((extraneous conversation))
  113.  
  114. 1458:43 CAM-3 Nope
  115.  
  116. 1458:47 CAM-? How could this happen
  117.  
  118. 1458:53 GND American one ninety one heavy thirty two right over the bridge
  119.  
  120. 1458:57 RDO-2 Three two right over the bridge one ninety one
  121. CAM-1 Nice
  122.  
  123. 1459:03 CAM-2 Scratch all after
  124.  
  125. 1459:06 CAM-1 Ready for a reading *
  126. RDO ((extraneous conversation))
  127. LC One ninety one load
  128. RDO-3 One ninety on go ahead
  129. LC Gross takeoff three seven nine thousand zero fuel three zero zero thousand the trim of five up
  130. GND American one ninety one heavy monitor tower one eighteen one
  131. LC That's based on ten degrees flaps MAC of twenty percent
  132. RDO-2 One ninety one
  133. LC Our passengers are as planned minus one, we do show one "W" over
  134. RDO-3 Three seven nine three hundred five up twenty percent, ten degree flap as planned minus one and a "W"
  135.  
  136. 1500:37 CAM-1 Oh we're about two thousand pounds heavier must of got a little bit of
  137.  
  138. 1500:41 CAM-2 Got an empty coach seat it says
  139. CAM-1 Yeah
  140.  
  141. 1500:48 CAM-2 Numbers are good
  142.  
  143. 1500:51 CAM-3 Okay, hydraulic, fuel, APU shoulder harness
  144.  
  145. 1500:54 CAM-2 On the right
  146.  
  147. 1500:55 CAM-3 Flight guidance, radios
  148.  
  149. 1501:05 CAM-2 Programmed
  150. CAM-3 Flight guidnace, radios
  151. CAM-2 Checked on the right
  152. CAM-1 Okay here
  153. CAM-3 Flight instruments and bugs
  154. CAM-2 Set right
  155. CAM-1 'kay on the left
  156.  
  157. 1501:11 CAM-3 Thrust computer
  158.  
  159. 1501:13 CAM-2 T.O.
  160. CAM-3 Stabilizer trim
  161. CAM-1 Five up set and operating
  162. CAM-2 Five up
  163.  
  164. 1501:18 CAM-3 Aileron, rudder
  165. CAM-1 Zero, zero
  166.  
  167. 1501:20 CAM-3 Flaps and slats
  168. CAM-1 Ten and tape takeoff
  169. CAM-2 Verified
  170. CAM-3 Verified
  171. CAM-3 Flight controls
  172.  
  173. 1501:21 TWR American one nine one heavy thirty two right position hold and traffic landing niner left
  174.  
  175. 1501:25 RDO-2 Position and hold American one ninety one
  176. CAM-? *
  177.  
  178. 1501:28 CAM-3 Yaw dampeners
  179. CAM-1 There on and working
  180. CAM-3 Engine anti-ice
  181. CAM-2 It's off
  182. CAM-3 Pitot heat
  183.  
  184. 1501:35 CAM-2 It's on and checked
  185.  
  186. 1501:39 CAM-3 Spoiler handles
  187. CAM-1 Armed
  188.  
  189. 1501:45 CAM-1 How's everything going back there Al
  190.  
  191. 1501:47 CAM-3 All right
  192. CAM ((Sound of chuckle))
  193. CAM-2 Normal
  194. CAM-2 How come we have a pitot heat inoperative
  195.  
  196. 1501:56 CAM-1 We must have some electrical problem somewhere because a
  197. CAM-3 We must have a # electrical problem
  198.  
  199. 1502:00 CAM-1 We don't have any fuel flow on number two
  200. CAM-2 You wanta go into position
  201. CAM-1 Let's not we're going to * with it for a while *
  202.  
  203. 1502:05 CAM-1 We still don't have the fuel flow
  204. CAM-2 Okay the pitot heat's okay
  205.  
  206. 1502:08 CAM-3 There she goes
  207. CAM-2 There's the fuel flow
  208. CAM-1 Okay
  209.  
  210. 1502:10 CAM-? Uh huh
  211. CAM-1 Aft lav circuit breaker
  212. CAM-2 Wait, what was out
  213.  
  214. 1502:14 CAM-3 Phase "B"
  215. CAM-1 I was gonna say we didn't have any ah
  216.  
  217. 1502:16 CAM-3 Number two
  218.  
  219. 1502:18 CAM-1 You might have that pump back now
  220. CAM-3 Yeah I do have it now, okay
  221.  
  222. 1502:23 CAM-1 Cause I didn't have any light up here I wondered about that
  223. RDO ((Sound of three chimes))
  224. CAM-2 Yeah when you, when you mentioned that # there's gotta be a
  225.  
  226. 1502:28 CAM-3 Phase circuit breaker
  227. CAM-2 Yes
  228. CAM-1 Ready
  229.  
  230. 1502:30 PA-? Flight attendants we will be taking off momentarily, like to have 'em please be seated
  231. CAM-2 Okay
  232. RDO ((Extraneous conversation))
  233.  
  234. 1502:38 TWR American one ninety one turn right heading three three zero cleared for takeoff thirty two right no delay
  235.  
  236. 1502:43 RDO-1 Ah
  237.  
  238. 1502:45 RDO-1 American one ninety one underway
  239.  
  240. 1502:52 CAM-3 Packs off
  241.  
  242. 1503:00 CAM-2 Ninety nine and four
  243.  
  244. 1503:06 CAM ((Sound of click))
  245.  
  246. 1503:12 CAM-1 There's eighty knots
  247.  
  248. 1503:13 CAM-2 Okay
  249.  
  250. 1503:16 CAM ((Sound similar to electric seat))
  251.  
  252. 1503:29 CAM-1 Vee one
  253.  
  254. 1503:31 CAM-1 Rotate
  255. CAM ((Sound of click)) ((dull click))
  256.  
  257. 1503:37 CAM-2 Damn!
  258.  
  259. 1503:37.5 CAM ((Rise in noise level))
  260.  
  261. 1503:38 ((end of recording))
  262.  
  263.  
  264. ---
  265.  
  266.  
  267. https://www.youtube.com/watch?v=bTwt5rDDOms --- ATC recording after AA191 lost the engine. ORD tower watches the plane turn and crash.
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