Date: 
                        September 18, 1976
                        Location: Tehran, Iran
                        
                      One 
                        of the best documented UFO-aircraft incidents, when a 
                        UFO was observed flying over the restricted airspace of 
                        Tehran, Iran. Two U.S.-made F-4 Phantom II jet fighters 
                        of the Imperial Iranian Air Force were scrambled, but 
                        as the pilots closed in on the target, their communications 
                        and weapons systems were suddenly jammed. The incident 
                        was confirmed by high ranking officers of the Iranian 
                        Air Force and later documented by several agencies of 
                        the U.S. military.
                      
                        Drawing based on a sketch and description by witness Pirouzi. 
                        "It was rectangular in shape
                        at a height of about 6,000 ft." The right end was 
                        blue, the left end was blue, and in the
                        middle was a red light making a circular motion. He thought 
                        that the object was probably
                        cylindrical.
                      
                        F-4 Phantom II jet fighter plane.
                      Source: 
                        Don Berliner, UFO Briefing Document: The Best Available 
                        Evidence
                      One 
                        of the best documented UFO-aircraft incidents took place 
                        over the skies of Tehran, Iran, on the night of September 
                        18-19, 1976, when a UFO was observed flying over the capital's 
                        restricted airspace.
                      Two 
                        U.S.-made F-4 Phantom II jet fighters of the Imperial 
                        Iranian Air Force were scrambled, but as the pilots closed 
                        in on the target, their communications and weapons systems 
                        were suddenly jammed. The incident was confirmed by high 
                        ranking officers of the Iranian Air Force and later documented 
                        by several agencies of the U.S. military.
                      Lt. 
                        General Azarbarzin, Deputy Commander-in-Chief of Operations 
                        of the Imperial Iranian Air Force, confirmed in a 1977 
                        interview the strong electromagnetic effect experienced 
                        by the two F-4s:
                      "That 
                        is true. They both were scrambled and they locked on the 
                        target but they received a very strong jamming. And then 
                        they lost almost every avionics system they had on the 
                        airplane... The jets couldn't fire their missiles because 
                        they had very strong jamming... this technology it [UFO] 
                        was using for jamming was something we haven't had before 
                        and we don't have it. It doesn't exist because it was 
                        a very wide band and could jam different bands, different 
                        frequencies at the same time. It's very unusual."
                      General 
                        Nader Yousefi, Base Operations commander and the number 
                        three man in the Imperial Iranian Air Force, authorized 
                        the scramble mission and was also an eyewitness, as described 
                        in a recent TV interview:
                      "I 
                        put down my phone [with the Control Tower] and I ran to 
                        my balcony to see if I can see that object. I saw a big 
                        star among the other stars, which it was at least twice 
                        as large as the normal stars... It was around 12 miles 
                        [19 km.], we lost communication and I heard nothing from 
                        the pilots, so I was so scared what's going to happen 
                        and what happened to the pilots. I asked from the tower 
                        controller to tell them to continue their mission and 
                        see if they can get more information from the flying object... 
                        and it [UFO] was coming toward them; they try to shoot 
                        them down. When they squeezed the trigger, it didn't work 
                        and the trigger was inoperative; they couldn't shoot the 
                        missiles."
                      The 
                        sequence of events can be reconstructed from both Iranian 
                        sources and declassified U.S. intelligence documents:
                      Between 
                        10:30 and 11:15 p.m. on September 18, several calls were 
                        received by the Control Tower at Mehrabad Airport, reporting 
                        an unknown object hovering 1,000 feet (300 m.) above the 
                        ground in the northern section of Tehran. The night shift 
                        supervisor, Hossain Perouzi, initially didn't pay too 
                        much attention. The radar system was turned off since 
                        it was under repair. After he received the fourth telephone 
                        call at 11:15 p.m., Perouzi went to the terrace next to 
                        the tower and observed the UFO with binoculars:
                      "Suddenly, 
                        I saw it. It was rectangular in shape, probably seven 
                        to eight meters [24 to 27 ft.] long and about two meters 
                        [7 ft.] wide. From later observations I made, I would 
                        say it was probably cylindrical. The two ends were pulsating 
                        with a whitish blue color. Around the mid-section of the 
                        cylinder, there was this small red light that kept going 
                        around in a circle... I was amazed. I didn't know what 
                        to think. There definitely was a very strange object there 
                        in the sky, right over Tehran."
                      At 
                        12:30 a.m. on September 19, Perouzi called the Air Force 
                        Command post to report the UFO. The Base Commander, in 
                        turn, called General Yousefi, who authorized the scramble 
                        of an F-4 Phantom jet from Shahrokhi AFB to investigate. 
                        The first scramble is summarized in a "Memorandum 
                        for Record" from the U.S. Defense Attaché 
                        Office (DAO) in Tehran:
                      "The 
                        F-4 took off at 01:30 a.m. and proceeded to a point about 
                        40 nm [45 statute miles or 75 km.] North of Tehran. Due 
                        to its brilliance, the object was easily visible from 
                        70 miles [110 km.] away. As the F-4 approached a range 
                        of 25 nm [29 statute miles or 46 km.], he lost all instrumentation 
                        and communications (UHF and Intercom). He broke off the 
                        intercept and headed back to Shahrokhi. When the F-4 turned 
                        away from the object and apparently was no longer a threat 
                        to it, the aircraft regained all instrumentation and communications."
                      At 
                        01:40 a.m., Gen. Yousefi authorized a second F-4 scramble 
                        piloted by Lt. Jafari, who quickly established radar contact 
                        with the UFO. The DAO Memorandum describes the events 
                        of the second scramble:
                      "The 
                        size of the radar return was comparable to that of a [Boeing] 
                        707 tanker. The visual size of the object was difficult 
                        to discern because of its intense brilliance. The light 
                        that it gave off was that of flashing strobe lights arranged 
                        in a rectangular pattern of alternating blue, green, red 
                        and orange, in color. The sequence of the lights was so 
                        fast that all the colors could be seen at once."
                      "The 
                        object and the pursuing F-4 continued a course to the 
                        south of Tehran when another brightly lighted object, 
                        estimated to be .5 to .33 the apparent size of the moon, 
                        came out of the original object. The second object headed 
                        straight toward the F-4 at a very fast rate. The pilot 
                        attempted to fire an AIM-9 missile at the object, but 
                        at that instant, his weapons control panel went off and 
                        he lost all communications (UHF and Interphone). At this 
                        point, the pilot initiated a turn and negative G dive 
                        to get away."
                      The 
                        aircraft electric system went back to normal once the 
                        F-4 reached a certain distance from the UFO. The small 
                        object returned to the primary object, but a second one 
                        emerged and flew toward the ground. Gen. Yousefi observed 
                        the landing from the balcony of his Tehran residence:
                      "He 
                        went down and landed on the ground and now it is a communication 
                        between the mothership and that small flying object, and 
                        it shows the lights between those two is connected."
                      More 
                        strange events were still reported that night. A UFO seemed 
                        to follow the F-4 as it approached the runway, and a civil 
                        airliner experienced communications failure but did not 
                        see anything. The DAO Memorandum describes the investigation 
                        early that morning:
                      "During 
                        daylight, the F-4 crew was taken out to the area in a 
                        helicopter where the object apparently had landed. Nothing 
                        was noticed at the spot where they thought the object 
                        landed (a dry lake bed), but as they circled off to the 
                        West of the area, they picked up a very noticeable beeper 
                        signal. At that point, where the return was the loudest 
                        was a small house with a garden. They landed and asked 
                        the people within if they had noticed anything strange, 
                        last night. The people talked about a loud noise and a 
                        very bright light like lightning."
                      The 
                        trail ends there. Although the Attaché Office added 
                        that the area had been checked for possible radiation 
                        and that "more information will be forwarded when 
                        it becomes available," the details surrounding 
                        the beeper signal and the ground witnesses have not been 
                        released. A report published in a 1978 classified U.S. 
                        military journal, MIJI Quarterly, basically repeats the 
                        facts contained in the original DAO message, although 
                        its author begins the article with this interesting remark:
                      "Sometime 
                        in his career, each pilot can expect to encounter strange, 
                        unusual happenings which will never be adequately or entirely 
                        explained by logic or subsequent investigation. The following 
                        article recounts such an episode as reported by two F-4 
                        Phantom crews of the Imperial Iranian Air Force during 
                        late 1976. No additional information or explanation of 
                        the strange events has been forthcoming; the story will 
                        be filed away and probably forgotten, but it makes interesting, 
                        and possibly disturbing, reading."
                      Recent 
                        taped testimonies by Iranian Air Force Generals Nader 
                        Yousefi and Mahmoud Sabahat, now retired and living in 
                        exile in the United States, reveal that Gen. John Secord, 
                        then chief of the USAF mission in Iran, attended a high 
                        level briefing with Iranian authorities and the pilots 
                        and air traffic controllers involved in the incident. 
                        A Defense Intelligence Agency (DIA) "Evaluation" 
                        summarized the salient features of the Iranian incident:
                      "An 
                        outstanding report. This case is a classic which meets 
                        all the criteria necessary for a valid study of the UFO 
                        phenomenon:
                      "a) 
                        The object was seen by multiple witnesses from different 
                        locations (i.e. Shemiram, Mehrabad and the dry lake bed) 
                        and viewpoints (both airborne and from the ground).
                      "b) 
                        The credibility of many of the witnesses was high (an 
                        Air Force General, qualified aircrews, and experienced 
                        radar operators).
                      "c) 
                        Visual sightings were confirmed by radar.
                      "d) 
                        Similar electromagnetic effects (EME) were reported by 
                        three separate aircraft.
                      "e) 
                        There were physiological effects on some crew members 
                        (i.e. loss of night vision due to the brightness of the 
                        object).
                      "f) 
                        An inordinate amount of maneuverability was displayed 
                        by the UFOs."
                        
                       
                      Source: 
                      http://www.ufoevidence.org/cases/case200.htm