(b) (1)

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SE6RET SPBltE 'v

CATEGORY = 2 M = 578

MESSAGE\: JS38l.885

ZCZCHU~Z S6~~1 ····... · eri.l f;MB. a ez RR I loE I . 18 311.587 3S "-.---' ZKZK RR HAH DE R SlS718Z FM USJ-794 · .. TO CTG 7J.8 CTIJ 77.J.l CTU 77.S.2 CVA JG CDRS HESTPACSSO MACV IHFO DIRNSAJ t' HQNSAPAC <ATTN UOG) ....._____, ZEM .'

S ~ C ICE T 51\'/IH SECTION THREE OF FIVEF46T1'7837 HEEKL Y AIR DEFENSE WRAP-UP. D. AOB THIS AIR.FIELD IS PRESEtHLY CREDITIED HITH A MltUMUMOF 4 MIG-17'S AND 3 HI0-21 1 5. 3. KEP ThfRE HERE llOMIG SORTIES PRE~LIGHTED FROM THIS AIR-FIELD FOR lHIS PERIOD. AT LEES.T 14 SORTIES WERE FLOHHAtlD REPRESEllTS All llllREESE OVER THE PHEVIOUS PERIODltl WHICH THERE HERE NO SORTIES FLOWH FRUM TlllS AIRFIELD. A. ACTIVITY CntlSISTED OF. ItHERCEPTIATTACC MISSIOUSAGAlllST USAF AllD USU STRIKE AIRCRAFT, Dt:FEllSIVE PATROLSIH REACT IOU TO HOSTILE AIRCRAFT AUIJ llHER-AIRFIELD FL IGHTSTOIFROM HAUOI/GlA LAM. CSEE SECT 2, A-3 AUD 5 FOR FURTHERDETAILS>. All SORT,IES FL0!-111 FROM THIS AIRFIELD l~ERE BY VIET-llAMESE fll.OIS UTILIZIUG THIS Al Rfl ELD AS AH Al TERUATERECOVERY BASE FOR SORTIES FLOMN FROM HAllOl/GIA LAM AIR-FIELD. B. AOB THIS AIRFIELD Itl tlOT PRESENTLY CREDITIED MITH ANY MIGTYPE AIRCRAFT, BUT HILL AT TIMES HOUSE HAllOl/OlA. LAM-BASED MIG. AIRCRAFT HHEH THEY RECOVER THERE AFTER AIRBATTTES OR PATROLS. SECTIOll THREE - SURFACE TO AIR <SAM> AUD AllTl-AIRCRAFTARTILLERY CAAA). COLLATERAL SOURCES REPORTED A MINIMUM OF 196 SAHSIO~IHGS HHl~C HFIRM.E.D .LAUllUHES l·IERE RE.FLECTED OtlDRV SAM ASSOCIATED COMMUNI ATIOllS,21 A LYSIS OF ORV SAM-AS~ClA~:: ~:::~~U~ATIONS _NDIC SAM BH OCATED N I AREA\.AT l8-~2N lif5- 11.:=-'.ARBHRARV · . ~DESIGUA R \/1488: AS BEEN SIGNEP Zo THISSAM B IllG PURPOS S. 22 OCT l •. DURitl 'THE .J4SSZ HOUR, u N-~T~IKE AIRCRAFT STRUCK THEHAIPHONG RR YD~~ • .--u ...... -

A4E HAS DOWNED AT 21-53H .l"6-44E l~~H: :EA:~ ::: ::~~:~:: OVER THE TARGET. ANALYSIS OF-ELINT SIGNA~s~REVEELS l~ADARS WERE ACTIVE .DURING THIS TIME FRAME;, BET·HEEN I - 8 , D SAM B~~~ ·-~OJEDREPORTINO TO THE 'H'AIP-HONo··CTLR''THe DOHNINO'OF ONE, possnm~BY AAA •

. alEl'l~ilI~EAV~l~~2~01A~!.i~~~~o~~Tri~~~lg~2~~~7~~T~~R~~rD~~~IF1ED SAM :~~T HAf PROBABLYOF THE 238TH RGT, HAS NOTED REPORTING A PREVIOUS MISSILELAUtlCH. THO MISSILES HERE LAUtlCHED AT A RAHGE OF l'i tlMSAND HERE REPORTED TO HAValAiLODEP...,.

~~~~ .. E~'Bft~~1g1~~~~-vu~~,. R~~ If~gerAC~hh~~0Af~HI~eT~A~~¥1l~~ ¥~ . i~'s~11~ CONFUSION AS TO HHO SHOULDBE CREDITED WITH THE KILL. OPERATIONAL REPORTS REVEA~ .THAT A ~Ecce FLIGHT PH AHISSION OVER PHUC YEN AIRFIELD SIGHTED 16 SAM~ ALL TllESAHs··wf!RI! 'SIGHTED BETHEEN 1553356Z. ND AIRCRAFT HERE DAM-AGED AUD LACK OF LAUUCll TIMES PREVfNT POSTIVE CORRELATION.23 OCT l. AT 1f42 AND AGAIN AT l:f915Z,.

• A HAIPHpNO ROT CTLR WASHOTED REPORTING DOWNED AIRCRAFT; THE CTLR REPORTED . .:.;.THATOHE AIRCRAFT HAD BEfH il'f~SUBSEQUEllTL Y CATCHlllG FIRE AHDGOING DOHH IN THE

HEST HEAR CAT BI SLAND.'AH F8 ASAlSO REPORTED TO HAVE GONE DOHN ti THE VICINITY · ~F 2J-51N 116-58E.tOPERATI N~ REPORTS REVEEL THAT USN AIRCRAFT WERESEEDI"G .

-•

TARGETS II THE VICIUITY OF HAIPHOllG HHY BRIDGE ATd828Z. PILOTS SIGHTED ONE SAM AHD EXPERIENCED LIGHT FLAK1NO AIRCRAFT HERE LOST OR DAMAGED.2. BETWEEN l948-52Z, SOUTH-HEST HAHOI SAM CTLR WAS NOTEDDISCUSSING ANTICIPATED US STRIKES HITH AN UNIDENTIFIED BN.THE CTLR COMMENTED THAT THO RECCE AIRCRAFT~

&EGRET SPBKE

@'pproved for release by NSA on 05-20-2014. Transparency Case# 6588{]

(b) (1)

(b)qqG~P ~~~~~p22s (b) ,-, -- -~- ·--(b) (3)-P.L. 86-36 ...

SEERET SP81lE

RF.COllllOITEREDAT ACU DOI C2S-53fl U6-33f) /\ti[) THAT THE AIR FORCE MIGHTSTRIKE IN HIE DJIH:CTIIJll OF ROUTE IUllE AllD Tlil\T HIE 11/WYMOULD RPO!JABLY 5TRil<E N HIE El\ST AT CAU RE <21-3111 H1<i-18El.THE CTTR CllllTHIUED BY Tl\THIG TtlE /\II? FORCE 1-JOULD HIT HAllOlltl THE l\FTERllOOll OUT HAIJ llO COMEYET. llO US STRIKES l·lrnE ::iCliEDULED AGl\lUST HJUIOI TODl\Y OUTPREVIOUS lllTERCErT:; HAVE ~~~L·~ ... HIAT PHOTO RECCE FLIGHTSRE USED TO FORCl\ST PROnl\OLE STRIKE LUCATIOll 24 OCT )j. DEHIEEU lJ42U-51Z, AU 1/t, UNIJ)EUTIFIED, PROIJADLE HAIPHONGAREJ\, CTLR J HfTED l~EPORTHIG TllE DDl-ltlltlG OF AN.,. fi'1 A4E\AllDTHE RESCUE HELICOPTER l-IHICH HAD COME N TO RESCUE THEPILOT. HIE AIRCRAFT HAS REPORTEULY HIT IH THE VICINITY OF21-B7N 1B6-43E AllD IMPACTED AT 2B-35N 1B6-43E AT SSSBZ.THE PILOTS HERE REPORTED TO HAVE BEEU SHOT DEAD. AT 3451Z J\ HAIPHOllG AREE CTLR MAS llOTED REPORTillO TOA SEllIOR SAM AUTllORITY THJ\T AN ME HAD DEEtl DOl·lllED AT St1l7ZAllD OllE OF THE HELICOPTERS 1-IAS J\LSO DOl-INED. OPERATIOllAL DATA REVEALS THAT All A4E ~IAS HIT BY AAAAT lM17Z. THE PILOT MAS FORCED TO EJECT J\T S42"Z J\llD MASRECOVERED BY HELICOPTER A SHORT TIME LATER. THERE MERENO REPORTS\ OF A HELICOPTER DEitlG FIRED 011. 2. DURIUG HIE aeaaz AllD S9fHJZ UOURS, USAF AllD USH STRIKEFORCES STRUCK PHUC YE14 AIRFIELD. AAA l-IAS tlTll\LLY LIGHTBUT llCREASED\ TO MODERAlf/llEAVY 37/57/85 MM GUtfflRE. USAF PILOTS SIGHTED 29 SAMS AtlD USll PILOTS SAH A MillIMUMOF 32 Sl\MS. mo USf\F AllD THREE USll AIRCRAFT l~ERE // OAMJ\GEDOY AflA :~r M~RF RFCQVfRED 'iAEf! Y DNS: USll F4D HAS DOMllC:.OllY A SAM. 'E'.lillT 6N~ llTEP.CEPTS I )\cnvE rn rnE ruuc n;H ARl:E. ·nEHIEEll a834-3 , Al UllIDEllTIFIED Sl\M Dll l·IAS flOlEDEllGAGED I~ DOUDLE LAUtlllH ACT Iv ITY. mo MISS IL ES ~IERELAUtllHIED AT B8 34Z OUT 110 RESULTS MERE REPORTED. THE Dll!iSGGESTED THAT SillCE THE HOSTILl;S HERE llORTHllEST OF THESITE A SECOllD Bl·I SHOULD BE ALLOWED TO FIRE TO HHICH T~IECTLR AGREED. AT 8837Z THE 811 REPORTED THAT OBSERVERS HAD5EEll HIO AIRCRAFT DURST IllTO FLAMES: OllE TO THE JIORTHEi\STAllD AllOTHER TO THE llORTHl·IEST. ANOTHER UNIDEllTIFIED nu REPORTED DOUBLE LAUllllliES ATS853 AllD fJ9iflJZ. OllE OF THE MISSILES MAS REPORTED TO HAVEDESTROYED A "PIRATE PLAllE." BETMEEI~ 39lHJ-41Z, AllD UIHIJEllTIFIED SAii 011 OF TUE 236HntRGT MAS REFLECTED LAUllCIUllG FIVE SAMS AllD DISCU5SHIG THEnOMDillG AT PHUC YEii AIRFIELD. ONE AIRCRAFT HAS REPORTEDDOWN SINCE A PARACHUTE HAD DEEN SIGHTED. AT 0936Z THE Bii MASillSTRUCTED TO COllSERVE THEIR MISSILES. OPERATIOllAL REPORTS REFLECTED AU F4 BEING DAMAGED BYA AM AT S832Z. THE AIRCRAFT HAS HIT AT 21-1311 lS5-33E­J\llDl•IEtH DDl·ltl AT S836Z Itl THE VICitlITY OF 21-2HI HJ5-37E. AlB'83(;z HIO A4E'S WERE DAMAGED BY SAMS IH THE VICIHITY OFZI-1311 IS5-48E BUT DOTH AIRCRAFT RECOVERED SAFELY. OHEOF THE A4E'S MAS ON FlRE FOR APPROXIMATELY THREE MillUTESAFTER BEING HIT MIHCH CORRELl1TES MITH HIE REFEREllC~ TO /\llAIRCRl1FT HI THE llORHll·IEST liURSTitlG INTO FLAMES.25 OCT ?BU Hlltlll

SEERET SP61{E

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