u 3 on 28 May a smell version of 3 June occurred TALKING PAPER 3f6 JUNE FALSE XNDICATEONS 6% SAC and ARMCC displayed different numbers of missiles at different times in NORAS and NMCC displays showed no indications II Analysis began under direction of a 3 dune False indications conferences between 0521-055 First non-threat missiles at NMCC 0521 displayed ZOO threat 0525 elk Displays cleared within seconds Fast Klaxon Alert sounded 0527 up Posture directed a and indications at various CP displayed different times until 9543 I No indications at ANMCC and II Site Systems 3 No detections by any sensor systems air No reports by direct connected PAVE PAWS data w No NORAD alarm levels generated an No NORAD alert aircraft notified NORAD voice tall 33 HMCC canvaned a Higsila Display Cenferen e 0539 -- in NGRAQ CD FALSE u H3 NGRAS high low apaed output turned assa sed as eff between 0563 and 0549 i3 NMCC canvaned a Threat Assessmant Cunference w Attempt by the BBC to duplicate situation CENCPAC ABNCP launched when canierence cchened 0551 ab CINCLANT incorrectly reported ELEM in ications 0553 -- in NGRAD output 0553 ilk Thraat Agsessment Conference terminated by was 0557 4 Jana with all users 9 Data recordings analyzed ll Software trap installed all Computera placed in 3 June cenfiguration 6 June IN SAC displayed 2900 BMEWS 1949 -- ll Fast Kiaxcn Alert at 1951 all displayed different numbers of missiles at different times all NMCC convened 3 Missile Display Conference 1951 -- Eli NGRAD reported sensors 193 NORAD at 1952 30 ia MEG terminated at 1953 Fl Spurious indications continued until 2503 C212 em Post 6 June Ia JC3 directed use of MEBU as primary syetem for Mums output few- 113 JC5 Emergency Action Procedures Conferences redefined 1 65 SAC w111 not posture until EB NORAD Syetem Confidence of M23 or BI is received -- El 05 direct data received or PAVE PAWS direct data if use-w down I h am Common to Three Events pit- - Re a3 Same NORAD computer configuration GI Different indications at different times at different centers EHL r lb Sudden display of large missile counts such as 200 2000 and 2026 -- 1H Conclusion -- HIP False indications caused by a bed chip on a transmitter interface board Problem Resolution 9 t 1 3 0 Every effort being ma a ta pravent anather incident - Expect investigative qroupg reccmen atiOn shortly -- 8 Near and far term ADP modificatians being considered W49 hid-I run un- it -- a MEBU in use until NCS fixes can be verified NOTE The bmefxng given by Miles Brown ta the CJCS is provided as background at Atch l 1 L ACTION QFFICER Capt Victcr P Budura Jr Nu BPC 63 40 AUTHENTICATION Vam mama 21 Brigadier Genera CF Assistant qucperauo imw A 1 Atch Review of Significant Events 13 June 80 - I I DECLASSIFY 31 Dec 1984 fuwWW 1wu4 5 7 This document is from the holdings of The National Security Archive Suite 701 Gelman Library The George Washington University 2130 H Street NW Washington D C 20037 Phone 202 994-7000 Fax 202 994-7005 nsarchiv@gwu edu