Transcript of Hearing 12/12/97 - TWA Flight 800 Investigation

More documents

Recommendations

Info

$Atago Co., Ltd. Salinity Refractometer, Model S-10 Instruction Manual$

1looking at inerting,1227looking at the possibility of any23technology that would keep wires out of fuel tanks, anythings that would run the wires for the fuel quantity4indication system in a ––separate from the low signal5wires,or to add some shielding which I think is6789usually done in the chemical industry any time you haveparallel wires like that run?What has Boeing done in that regard since theaccident?1011WITNESS THOMAS:Let me try and answer it.That is a long question.We have been studying all of121314these options basically since we realized that we werenot going to find an easy solution to TWA 800.It became very obvious we needed to expand15our attention.The NTSB recommendations focused our1617attention on a lot of these things.study those things.We undertook to18We have looked at fuel tank inerting, we have19looked at foam,we have looked at JP–5, we have looked20at ullage sweeping.We have done all of these things.212223We have looked very carefully at our systems. Wecontinue to do so.We have looked at are there techniques to get24away from electrical driven fuel pumps.These things25are all the issues we have been looking at.Shielding;CAPITAL HILL REPORTING, INC.(202) 466-9500
12281I am not an electrical engineer.I know we have234567discussed it at length as to the options.Some of our later airplanes are shieldedalready simply for performance reasons, particularlythe later airplanes where we changed technology in howwe sense the signals to and from the gaging system.We required those systems be shielded, so we8have incorporated those into the later airplanes.Not9for safety, per se,but for performance reasons where101112there are some side benefits from that. So, we havedone all of that.We were -- a lot of that is -- you referred13to the industry response to the FAA.A lot of those14studies are documented in that response.I was15literally technical leader, if I can use that term, of16that response,and a lot of the work was based upon171819202122232425studies done at the Boeing Company and in cooperationwith McDonnell Douglas.At the time we did all of that work,McDonnell Douglas was still a separate corporation andwe cooperated with McDonnell Douglas, we cooperatedwith Air Bus and we cooperated with Lockheed.CHAIRMAN HALL: Have you -- do you anticipateparticipating in this ARAC committee that the FAA willput together?CAPITAL HILL REPORTING, INC.(202) 466-9500
Page 1: 1186BEFORE THENATIONAL TRANSPORTATI
Page 6 and 7: 119112“The reticulate polyurethan
Page 8 and 9: 1193123The Air Force developed this
Page 10 and 11: 1195123QBY MR. ANDERSON:DIRECT EXAM
Page 12 and 13: 1197123decision, and the decision w
Page 14 and 15: 1directions.When the test in the Mo
Page 16 and 17: 1CHAIRMAN HALL:1201I know that goes
Page 18 and 19: 12031234What we will -- are expecti
Page 20 and 21: 12051and then we will charter ARAC,
Page 22 and 23: 120712CHAIRMAN HALL:MR. ANDERSON:Ge
Page 24 and 25: 1WITNESS McSWEENEY:1209I would then
Page 26 and 27: 12111234567several Airworthiness Di
Page 28 and 29: 1213123There are many who have stud
Page 30 and 31: 12151opinion.2WITNESS McSWEENEY:I w
Page 32 and 33: 12171States.There are international
Page 34 and 35: 121912from industry what kind of ti
Page 36 and 37: 1AYou can be a member of the active
Page 38 and 39: 12231reasons,like airline dispatch
Page 40 and 41: 12251 MR. ANDERSON: I would like to
Page 44 and 45: 123will participate.WITNESS THOMAS:
Page 46 and 47: 12CHAIRMAN HALL:specific informatio
Page 48 and 49: 1233123of order here.WITNESS THOMAS
Page 50 and 51: 1235123becomes an option that becom
Page 52 and 53: 1so,in that regard it is very impor
Page 54 and 55: 12electric pumps, or moving the --
Page 56 and 57: 1WITNESS McSWEENEY:1241Well, whethe
Page 58 and 59: 12431234require engineering and som
Page 60 and 61: 124512345MR. SWAIM: Mr. McSweeney,
Page 62 and 63: 124712eliminating.so, the key is, i
Page 64 and 65: 12491will be at the ARAC.2so,we hav
Page 66 and 67: 125112This remains an important con
Page 68 and 69: 1unstable foam wandering around the
Page 70 and 71: 1255123451, again, am very pleased
Page 72 and 73: 12571234reduction must be in the ta
Page 74 and 75: 12591aircraft or a fleet, but money
Page 76 and 77: 12611234concept, and I was also ver
Page 78 and 79: 126312345FURTHER DIRECT EXAMINATION
Page 80 and 81: 1265123passed to an engineering soc
Page 82 and 83: 12671cancellations do not affect yo
Page 84: 12691The next thing, Mr. McSweeney,
Page 87 and 88: 127212effort and what is referred t
Page 89 and 90: 127412history that is most signific
Page 91 and 92: 127612said and written about the pr
Page 93 and 94:
1system was the right system to use
Page 95 and 96:
12801combat and heard the maintenan
Page 97 and 98:
12821MR. BALL:It is significantly c
Page 99 and 100:
128412345buying the C-130 J. It is
Page 101 and 102:
12861234567aircraft that have been
Page 103 and 104:
12881MR. STREETER:In the list you s
Page 105 and 106:
1290123obviously as the tank emptie
Page 107 and 108:
129212We discussed a little bit on
Page 109 and 110:
129412345and create the service bul
Page 111 and 112:
12961CHAIRMAN HALL: Well, thank you
Page 113 and 114:
1WITNESS TYSON:I am going to try to
Page 115 and 116:
13001234remediational technology in
Page 117 and 118:
130212and the FAA, they are working
Page 119 and 120:
130412middle of the summer and it i
Page 121 and 122:
13061MR. BOUSHIE:Crane has no quest
Page 123 and 124:
1308123is in order to respond to th
Page 125 and 126:
13101DR. ELLINGSTAD:Has any of that
Page 127 and 128:
1Jet-A from LAX,1312and we have don
Page 129 and 130:
13141Mr. Thomas, is there anything
Page 131 and 132:
1316123causing me to do too many co
Page 133 and 134:
1effect,1318it is almost to the poi
Page 135 and 136:
1320123CHAIRMAN HALL: So, in other
Page 137 and 138:
1322123looking at the oxidizer and
Page 139 and 140:
13241234tell them over and over aga
Page 141 and 142:
132612quickly as we can as we run u
Page 143 and 144:
1328123456789101112131415161718ackn
Page 145 and 146:
13301opinion.We have thoroughly enj
Page 147 and 148:
13321234this opportunity to thank t
Page 149 and 150:
13341meeting, we can never be sure
Page 151 and 152:
1336123456received within the speci
Page 153:
1338123again thank C-Span for that
show all

Transcript of Hearing 12/12/97 - TWA Flight 800 Investigation

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?