Diagrams and blueprints for malfunction procedures symptoms of Service Propulsion System  (SPS); Original dates March 1, 1968; altered June 20, 1968.https://scholars.fhsu.edu/apollo/1061/thumbnail.jp

National Aeronatics and Space Administration (NASA)

English

Fort Hays State University

Fort Hays State University FHSU Scholars Repository Apollo One Investigation Materials Cosmosphere Collection 8-19-1968 Service Propulsion System (SPS) - Malfunction Symptoms 1 - 15 and hand drawn diagrams National Aeronatics and Space Administration (NASA) Follow this and additional works at: https://scholars.fhsu.edu/apollo Recommended Citation National Aeronatics and Space Administration (NASA), "Service Propulsion System (SPS) - Malfunction Symptoms 1 - 15 and hand drawn diagrams" (1968). Apollo One Investigation Materials. 62. https://scholars.fhsu.edu/apollo/62 This Document is brought to you for free and open access by the Cosmosphere Collection at FHSU Scholars Repository. It has been accepted for inclusion in Apollo One Investigation Materials by an authorized administrator of FHSU Scholars Repository. YMPTOM SPS PRESS 23 SC thNStlng? Basic Date ---I.Hf SMZA-03-SCl O 1-(2) APOLLO OPERATIONS. HANDBOOK YES ' PROCEDURE ..---------------..-- •C/W FAILUR E NORMALI BOTH HIGH, NO YES 12 • SPS He VLV 1.:.::...11...-::(bo-th) - Q!i Both tb's bp? YE.Si Do not cycle He vlvs -potslblllty of , tk rupture Change Date ________ _ REMARKS 0 Normal o pe ra tin g press is 170 - 195 ps ia. MSFN will u se fu e l and oxid te l e m e tered pres s d a ta to bac kup on board !,!ldication s . 0 Attempt t e mp cont by reori-e nting S C if pos sible. Q) Engine chugging may occur if SPS Pc l s<-,.... .. " • 0 C o ntro l prpl nt tk prea 11 between 175 and 185 p s i by I manual a ctuation of H e sw. ' ~·"''~ ()~ ~ .. v,11..L e.u.DIQ n-,:o CN¥t/J c.11 Clf"-~ ~ \.& ~ VI.JJ-©IAII oubaequent SPS burns-should be made with SPS He VLV (both) - OFF to minimiz e AP between fuel and oxi.2,i~ r. ___ _ SM-,2A-1 459A Page _-,P,._ __ _ fth I Ba■ ic 01.te l Maroh 1968 IIOllil-ol-11-a, C:hanae Date 20 June 1968 ' NOi pO••lhl• tu 1tl•tln11ut .. h U• lw••n lh o •• IW ll lal h1t • • · SM-!A-14-01?,' Page __ 5_-6 .... 0--..._ SYMPTOM l'IIMATUII 1'1 SHU100'1¥N ·-------NO SPS IONITION Ba■ ic Date .,... ............ ,, ... . SMZA-03-SCl0l-(2) APOLLJ5 -OPERATIONS HANDBOOK PROCEDURE l March 1968 Chanae Date 20 June 1968 REMARKS 0 lf CMC burn, SPS THRUST ON It wlll be on for only a few aeconda after SPS 1hu t• down. © SPS !unc llono lool, SM- 2A• l*0I 1 \ Page __ S_-6-0,.___ • ' SYMPTOM I 1~11 I YE LL OW Light on i f · ln jecto~/ chomber i:S~~~ temp is >11 0 psia < 90 psia SPS He VLV tb _ AB NORMAL Basic Date I I I I I FO RM 2997• £ Ne w 11 - 67 1 Burn miuion c ritica l? FUE L and/ or OXID TK PRESS HIGH (LOW} B • /:J.V THRUST (fa iled bank}-~ N O .t SM2A-03-SC101-(2} . LLO OPERATIONS H A NDBOOK PROCEDURE NO Change Dat e REMARKS bly resulting in ch b sep~ration. · am e r 0 MSFN can confirm flang temp >480 oF. e 0 Miss ion cri tical b assumed to be dua~r::nk. 0 Failed bank should not b used except in an em e r g:n cy . 0 Subsequent use of SPS . ~ontingent upon M SFN engine inves t igation. 0 Control prplnt tk between 17 5 and l~~es s. manual actuation of .::,_: is;_ Page 3)-· SM- 2A-1461A J • ' SYMPTOM YELLOW Light on if: Injector/ chamber Flange temp is ;::480° F >110 psia < 90 psio SPS He VLV tb -AB NORMAL Basic Date FORM 2997- E New 11• 61 Burn mission t------ critical ? FUEL ond/or OX ID TK PRESS HIGH (LOW) • liV THRUST (failed bank) - O FF SM2A-03-SC101 - ( 2) . LLO OPERATIONS HANDBOOK PROCEDURE EMS liV test • Perform EM S liV test SPS THRUST It YES remains on? Ind - One or two portially c losed ? • V0l Nl0E llE 1 in A o f Rl ? NO SPS THRUST ON CKT IN liV COUNTER OR SCS LOGIC FAILED sy s parameters? NO INSTRUMEN-TATION FAILURE Change Date _________ _ REMARKS 0 Subs equent 6.V' s should be p e rform ed on unaffected bank (failed bank can be-determined by MSFN from T LM and by crew from SPS INJ VLV ind) . Failed bank may be used in an eme r gency by placing associated fl V T H RUST sw ON a t T JGN. 0 High flang e temp may occur up to 30 min following a burn from normal heat soak-back. 0 Flange bur n th r ough may be expected at anytime , p ossi-bly r esulting in chamber sep~ration . 0 MSFN can confirm flange temp>4SO•F , 0 Mission c r itical burns assumed to be dual bank. 0 Failed bank should not b e used except in an emergency. 0 Subsequent use of S P S engine contingent upon MSFN investigation. 0 sPS engine operable until engine indications requi r e · shutdow11. Engine chugging may occu r if SPS Pc is ...... t 0 Control prplnt tk p r ess b etween 175 and 185 psi by manual ac tuation of He s w . SM-2A-1461A Page __ 3J.-__ ·___ _ J ,J SYMPTOM He TK PRESS LOW OR DECR SPS ENG INJ VLV IND ABNORMAL Ono open during non-thrusting Ono or two closed during bum period (or bum attempt) ,. Basic Date FORM 2997•£ New 11•87 Ind check 1--,---PI • SPS PRESS IND sw -~,\!::!lli,.!:!!. Press normal? SPS thrusting? NO INSTRUMEN-TATION FAILURE SMZA-03-SC 101-(2) APOLLO OPERATIONS HANDBOOK PROCEDURE IND FAILED. Oouble1or le bank operation YES LOW AND DECR SPS LINE HTRS FAILED ON FN verifies vlv Md? NO Change Date ________ _ REMARKS 0 MSFN will monitor redun-dant He press instrumentation. © H e depletion imminent. SPS engine operable until engine indications require shutdown. Engine chugging may occur if SPS Pc is <7 0 pol, ~ t O },.,,_ ~ p, r~~ 0 Operation a t <350 psi results in partially open ball vlvs and hazardous engine operation. 0 SPS operable on redundant bank if one bank failed. 0 Failed bank should not be used except in an emergency. 0 cb SPS HTRS GAUGING (2) should be closed before SPS engine operation. ©Prplnt temp ,may b~ incr by SC orientation or by firing SPS engine. SM-2A-l 462A Page ______ _ SMZA-03-SCl 01-(2) APOLLO OPERATIONS HANDBOOK SYMPTOM PROCEDURE REMARKS ./1---------i-----------------------+----------I J ' • OXID FLOW VLV INCR - NORM NO RESPONSE ofter 5 seconds: --OF OXID FLOWl---t---~ • OXID FLOW VLV PRIM - SEC rc60b £if~~? • fNX~~ (6~~~ VLV INCR -(OXID FLOW VLV PRIM - PRIM} 1--0-X-ID-FL_O_W_V-LV_tb_c_o_rr-ec_t_?----11-y.:.;E:,:S_,._rl NO • O XID FLOW VLV INCR - NORM O X ID FLOW ------ • ~~lo5 F5~0°.;/~:LV PRIM - PRIM SPS QTY OXID UNBAL IND ERRATIC OR PEGGED SPS QTY OX ID UNBAL ind normal? YES NO ~~>;ifA~~EL} 1-t---1---==---l ABNORMAL % FUEL{% OXID} YES readout norm a I? NO • SPS QTY TEST - .!, • Iner % oxid by 5. 0% % Fuel incr by 5±1%? • OXID FLOW VLV INCR sw -as desired UN AL ind check • SPS QTY TEST -1 for 10sec, then 2for10sec OX ID UNBAL ind norm?" PRIM UNBAL SYS FAILED Prim qty test • SPS QTY TEST - .!, • Iner % oxid by 5. 0% % Fuel incr by 4±1%? Use aux s s • PUG MODE -AUX • PUG MODE -PRIM • Perform qty test • PUG MODE -NORM Basic Date Change Date ________ _ FORM 2997•£ New 11•67 0 The OXID FLOW VLV !NCR sw cannot operate unless power is applied through a THRUST ON signal or throu gh the SPS QTY TEST sw. If flow v l v position was changed by the SPS QTY TEST aw , fuel and oxid quantity readouts must be returned to the origi-nal values . 0 Sec v l v has sufficient r'ange to compensate fo r prim vlv failure in any position and still provide vlv openings £or !NCR, NORM or DECR oxid flow. 0 Th~ Secondary sliding gate v l v must be in the nominal flow position {rather than !NCR or DE CR) before switching to the PRIM OXID FLOW VLV or misalignment of the secondary vlv could make the primary vlv inoperative . 0 0 0 0 0 0 Assumes qty indicating sys normal. Assum e s SC is still thrust -ing . If th r ust has te r m -in ated , proceed with s tep z. Actuation of SPS QTY TEST sw here will reali gn digital display to prim s ys , Assumes SC is still thrust-ing. If thrusting terminated befor e step l is complete, proceed to step 4. Compl ete thrusting prior to QTY TEST. MSFN must now supply any prplnt quantity data. ~ SM-2A- 1463A Page_..,, ____ _ l ,. Lr. ,, .. P1TC"' ~ 'l'Aw) G~~;) Ye.Lo-.> Ll~R,- eu i iP : OVIM~\J••~- ~ua·s It.I.,..._. ae-.PwcYt\ii oa,v.•. , ..,..~ . •• · ._,._.N- ~,VA,oA z:a 6,:; 00 .Sc... 'CV .... 3 I A~S"1/rl>OfdN 1 - - - - • TVC. ~'16L 1>' -. 1• ) , 1 .· I '~) G;,_,811._ c..u-.res i 1?1'TtlhTNu -;-- ,, , HAtU'fA1~ ?' ~t . • f~~ t'M Ci 1111Bii1,c. NO TR.II-\ C~ '- t M 8 Ac... C.ONT'&O '-Uc, lt.f-1_~ r 'Z. ( -AV TMct.\$1' ·c~) .;. ~ ~ 5 10 - - - - - - , . , be IMO~--Fe, I LL 'S ~ \ \ J.. (: '-.,. - I AlltPs :~"->,, - , ...i -HI '1 . . @ ~ ·~D.V.:0 -F ·,. TI'C~~~ ~ ~ ,-dw oa• oO-bv,-h:v ~ ,rf'•_=~. ~ -;U,u..;, f ' FAIL.I/RE ( -#1) ©-~· ,· ii •, , -~ T/ .~ j_ JJr-_ ~ , · · ep ✓ , . - - -. , • ~~ . ' ' ti .s . ' ' . .t· ~ ' --, . - . ,, eu& ~ . . -~ -. - r---~- ~ ~ -" . w ' ·191 'b .tLi;AY.~ -~ . .. Se~ i: 0-,, ~dJI'~~ • I -i- i 10 .....,_ · · 1 Subsequent AV's shou ld be performed on unaffected bank ( failed bank can be determined by MSFN from TLM and by c r ew from SPS !NJ VLV ind). Failed bank may be used in an emergency by placing associated I!,,. V t T IGN . J ./. ~ I/ / ./ f lj-f ~ .J c) < 9 ~ aim --, ~1 (U CM ~ -~ c.) ~ u ~ "" ". 0 ,._,,. r ~, 41\ ,- "' .. 2. JJw 1 a. t 2 >IA cfJ el 0 t- 0 f~ z it z ID ! - ~ C • -- Q ~ • \.# ,- 3 m~R ~\ 11\r ~ J\I\ JP . ~ •· • / • ' 1 4 , ., ~ 1' © ~, t I ";j/,/ Ji , · :· . •· ,. ,p~1 , , . c ,J - ~ .- - eu& ~ &.a,...:,_~~ ~ @ ~AV.~ •~ s.~1 o-; .i:JJ'.., -, ~~~--'.7 .. - t~ I ~ / 0 subsequent 0 v1s sh Id performed ou be bank {failed o~a~:a!faenc t ed de termined by MSF N be T LM and b from I NJ VLV i:d c r ew ~r om S P S may be used \ ·n ~ailed bank by placing a ssociat:r;; e;Jency t T IGN. J -~ I/ / ./ • "' p lj 3 I /IOt S Htff/)()U/i Tfll<PS 0#. 1 y~ TIii? C£J. CMC c ;11 C I/NJ G r J/0 ~ /, ~ 

Service Propulsion System (SPS) - Malfunction Symptoms 1 - 15 and hand drawn diagrams

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Service Propulsion System (SPS) - Malfunction Symptoms 1 - 15 and hand drawn diagrams

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