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The Valentich disappearance is a mysterious event that occurred on October 21, 1978, in which 20-year-old Frederick Valentich disappeared in unexplained circumstances while piloting a Cessna 182L light aircraft over Bass Straitmarker to King Islandmarker, Australia.

During a "training flight", Valentich contacted Melbournemarker air traffic control, saying he "was being buzzed by a UFO with four bright lights about above him." More reports from Valentich followed; he later noted that his plane's engine was running roughly, and his last message was "It is not an aircraft."

No trace of Valentich or his aircraft was ever found, and a Department of Transport investigation concluded that the reason for the disappearance could not be determined.

The report of a UFO sighting in Australia attracted significant press attention, in part due to the number of sightings reported by the public on that night.. Ken Williams, a spokesman for the Department of Transport, told the Associated Press that "it's funny all these people ringing up with UFO reports well after Valentich's disappearance."


On October 21, 1978, Valentich, a pilot with a Class Four instrument rating and 150 hours flight experience , filed a flight plan from Moorabbin Airportmarker, Melbourne, to King Islandmarker in Bass Straitmarker. Visibility was good and winds were light. He was flying a Cessna 182-L, with a cruising speed of around 256 km/h (160 mph).

Valentich departed Moorabbin at 18:19 hrs local time and contacted the Melbourne Flight Service Unit to inform them of his presence. He reported reaching Cape Otway at 19:00 hrs; records do not indicate that he reported anything out of the ordinary before reaching Cape Otway.

At 19:06 hrs, Valentich contacted Melbourne Flight Service Officer Steve Robey and requested information on other aircraft at his altitude (below 5000 ft, 1524 m); he was told that there was no known traffic at that level. Valentich then reported that he could see a large unknown aircraft which appeared to be illuminated by four bright landing lights. He was unable to confirm its type, but said that it had passed about overhead and that it was moving at high speed. Valentich then reported that the aircraft was approaching him from the east and voiced the opinion that the other pilot might be purposefully toying with him.

At 19:09 hrs Robey asked Valentich to confirm his altitude and that he was unable to identify the aircraft. Valentich confirmed his height and began to describe the aircraft, saying that it was "long", but that it was traveling too fast for him to describe it in more detail. Valentich stopped transmitting for about 30 seconds, during which time Robey asked for an estimate of the aircraft's size. Valentich then came back saying that the aircraft was "orbiting" above him and that it had a shiny metal surface and a green light on it. This was followed by 28 seconds of silence before Valentich reported that the aircraft had vanished. There was then a further 25-second break in communications, after which Valentich returned and wondered if he was being tailed by a military aircraft.

Robey attempted to gather more information about the unidentified aircraft and its location; Valentich reported that it was now approaching from the southwest. 29 seconds later, at 19:12:09 Valentich reported that he was experiencing engine problems and was going to proceed to King Island. There was brief silence then he came back to say "it is hovering and it's not an aircraft". This was followed by 17 seconds of unidentified noise, described as being "metallic, scraping sounds", then all contact was lost.

Search and rescue

A Search and Rescue alert was initiated at 19:12 hrs. Valentich failed to arrive at King Island by 19:33 hrs, and a sea and air search was undertaken by sea, with two RAAF P-3 Orion airplanes conducting an aerial search over a seven-day period. Search efforts continued until October 25, 1978.

A slick of fuel was discovered on the sea roughly near where Valentich had last radioed Robey, but analysis proved that the slick was not aviation fuel. No trace of the aircraft was found. The aircraft was equipped with four life jackets and an emergency radio beacon, and was designed to stay afloat for several minutes.

Official findings

An official Department of Transport (DOT) investigation was launched into Valentich's disappearance. It lasted two weeks but was unable to determine the cause. DOT findings on the incident read "The reason for the disappearance of the aircraft has not been determined", and that it was "presumed fatal" for Valentich.

A summary report was finally published on April 27, 1982 which included all known radio traffic occurring the evening of 21 October 1978 between Delta Sierra Juliet (Valentich) and the Flight Service Unit at Melbourne (Steve Robey).

Other findings

Unexplained sounds

During Valentich's final recorded transmission to the Melbourne Service Unit, seventeen seconds of unexplained noise, described as being "metallic, scraping sounds," were recorded by DOT ATC tapes.

Researchers Paul Norman and John W. Auchettl received a full copy of the original voice tapes from the DOT and later from the pilot’s father for analysis. Auchettl had a copy analysed in Melbournemarker by RMITmarker and another was taken to the United States by Norman for analysis by Dr. Richard F. Haines, a former researcher with NASA-Ames and Associate Professor of Psychology at San Jose State University.

Haines described the sounds as "Thirty-six separate bursts with fairly constant start and stop pulses bounding each one," and said that there were "no discernible patterns in time or frequency." The significance of the sounds, if any, has remained undetermined.

UFO sighting reports

After news of Valentich's disappearance became public, a number of individuals came forward claiming to have witnessed unusual activity in the area.

Among the accounts given were 20 in which people claimed to have seen "an erratically moving green light in the sky" and in one instance witnesses, located about 2 km west of Apollo Bay, Victoriamarker, stated that they saw a green light trailing or shadowing Valentich's plane, and that he was in a steep dive at the time.

According to ufologists, these accounts are especially significant as most were recorded several years prior to the 1982 release of transcripts in which Valentich had described the object above him as having a green light.

Comments from Valentich's father

According to an Associated Press report, Guio Valentich, the missing pilot's father, said "he hoped his son had been taken by a UFO and had not crashed. 'The fact that they have found no trace of him really verifies the fact that UFOs could have been there.'"; Guio Valentich also told the AP that "his son used to study UFOs 'as a hobby using information he had obtained from the air force. He was not the kind of person who would make up stories. Everything had to be very correct and positive for him.'"

Proposed explanations


Several prosaic explanations have been put forward for Valentich's disappearance:

  • The possibility remains that Valentich staged his own disappearance: even taking into account a trip of between 30 and 45 minutes to Cape Otway, the aircraft still had enough fuel to fly 800 kilometres; despite ideal conditions, at no time was the aircraft plotted on radar, casting doubts as to whether it was ever near Cape Otway; and Melbourne Police received reports of a light aircraft making a mysterious landing not far from Cape Otway at the same time as Valentich's disappearance.
  • Another proposed explanation is that Valentich became disoriented and was flying upside down. What he thought he saw, if this were the case, would be his own aircraft's lights reflected in the water. He would then have crashed into the water. This was quickly ruled out by aviation authorities, as the Cessna 182 has a high wing with a gravity feed fuel system, thus making inverted flight impossible in this model.
  • In 2000 a private investigation of the incident concluded that Valentich had become disoriented and experienced engine and radio problems which caused him to crash into the sea. It further suggested that the Bass Strait's strong prevailing currents might have carried his relatively light aircraft a long distance before it finally sank.
  • Some have suggested that he encountered — and was subsequently killed by — drug smugglers, that he was struck by lightning from a lenticular cloud , or that his final radio message was setting the stage for an elaborate suicide attempt , despite Valentich living a seemingly content life. In 1992, prominent UFO skeptic Philip J. Klass made unsubstantiated charges that Valentich was a drug smuggler, which caused offence to Valentich's relatives.


Unconventional explanations for Valentich's disappearance include speculation by ufologists that the unexplained aircraft with the green light that he reported was an extraterrestrial vehicle, which in turn either abducted Valentich or caused the destruction of his plane in some fashion.

Speculation that a UFO was involved has been fueled by a number of factors, including Valentich's last transmission, in which he described the aircraft shadowing him as “hovering” and “not an aircraft”, the unexplained sounds that were heard at the end of his transmission, and a rash of UFO reports from the area.

Transcript of the transmissions

File:Valentich_Disappearance_1.jpg|Australian Department of Transport report (page 1)File:Valentich_Disappearance_2.jpg|Australian Department of Transport report (page 2)File:Valentich_Disappearance_3.jpg|Australian Department of Transport report (page 3)

The following is a transcript of the exchanges between Valentich and air traffice control, from the first three pages of the Australian Department of Transport report:

19:06:14 DSJ [Valentich]: Melbourne, this is Delta Sierra Juliet. Is there any known traffic below five thousand?

FS [Flight Services; Robey]: Delta Sierra Juliet, no known traffic.

DSJ: Delta Sierra Juliet, I am, seems to be a large aircraft below five thousand.

19:06:44 FS: Delta Sierra Juliet, What type of aircraft is it?

DSJ: Delta Sierra Juliet, I cannot affirm, it is four bright, and it seems to me like landing lights.

FS: Delta Sierra Juliet.

19:07:31 DSJ: Melbourne, this is Delta Sierra Juliet, the aircraft has just passed over me at least a thousand feet above.

FS: Delta Sierra Juliet, roger, and it is a large aircraft, confirmed?

DSJ: Er-unknown, due to the speed it's traveling, is there any air force aircraft in the vicinity?

FS: Delta Sierra Juliet, no known aircraft in the vicinity.

19:08:18 DSJ: Melbourne, it's approaching now from due east towards me.

FS: Delta Sierra Juliet.

19:08:41 DSJ: (open microphone for two seconds.)

19:08:48 DSJ: Delta Sierra Juliet, it seems to me that he's playing some sort of game, he's flying over me two, three times at speeds I could not identify.

FS: Delta Sierra Juliet, roger, what is your actual level?

DSJ: My level is four and a half thousand, four five zero zero.

FS: Delta Sierra Juliet and you confirm you cannot identify the aircraft?

DSJ: Affirmative.

FS: Delta Sierra Juliet, roger, stand by.

19:09:27 DSJ: Melbourne, Delta Sierra Juliet, it's not an aircraft it is (open microphone for two seconds).

19:09:42 FS: Delta Sierra Juliet, can you describe the -ER- aircraft?

DSJ: Delta Sierra Juliet, as it's flying past it's a long shape (open microphone for three seconds) cannot identify more than it has such speed (open microphone for three seconds). It's before me right now Melbourne.

19:10 FS: Delta Sierra Juliet, roger and how large would the - er - object be?

19:10:19 DSJ: Delta Sierra Juliet, Melbourne, it seems like it's stationary. What I'm doing right now is orbiting and the thing is just orbiting on top of me also. It's got a green light and sort of metallic like, it's all shiny on the outside.

FS: Delta Sierra Juliet

19:10:46 DSJ: Delta Sierra Juliet (open microphone for three seconds) It's just vanished.

FS: Delta Sierra Juliet.

19:11:00 DSJ: Melbourne, would you know what kind of aircraft I've got? Is it a military aircraft?

FS: Delta Sierra Juliet, Confirm the - er ~ aircraft just vanished.

DSJ: Say again.

FS: Delta Sierra Juliet, is the aircraft still with you?

DSJ: Delta Sierra Juliet; it's (open microphone for two seconds) now approaching from the south-west.

FS: Delta Sierra Juliet

19:11:50 DSJ: Delta Sierra Juliet, the engine is rough-idling. I've got it set at twenty three twenty-four and the thing is (coughing).

FS: Delta Sierra Juliet, roger, what are your intentions?

DSJ: My intentions are - ah - to go to King Island - ah - Melbourne. That strange aircraft is hovering on top of me again (open microphone for two seconds). It is hovering and it's not an aircraft.

FS: Delta Sierra Juliet.

19:12:28 DSJ: Delta Sierra Juliet. Melbourne (open microphone for seventeen seconds).

(An unexplained sound abruptly terminated the voice communications.)

See also


  1. Haines, Richard F (1987) "Melbourne Episode; Case Study of a Missing Pilot", Lighting Design Association, ISBN 0961808209
  2. Norman, Paul (1996), " The Frederick Valentich Disappearance", Victorian U.F.O. Research Society Inc. (2007-04-27)
  3. Clark, Jerome (1998), The UFO Book: Encyclopedia of the Extraterrestrial. Visible Ink, ISBN 1578590299
  4. Haines, Richard F., Norman, Paul (2000), “ Valentich Disappearance: New Evidence and a New Conclusion”, Journal of Scientific Exploration, V14#1, pp. 19–33, 0892-3310/00
  5. Clark, 1998
  6. Independent investigation for PRA & VUFORS
  7. "Missing pilot Valentich final sound analysis report", John W. Auchettl, Phenomena Research Australia 1982
  8. NICAP (1992) “ Richard Haines - Who's who in Ufology”, NICAP (2007-04-27)
  9. ”Richard F. Haines – Who's Who in California”, International WHO'S WHO Historical Society, Marquis
  10. Melbourne Age, 28 October 1978, p. 1
  11. The Australian, 24 October 1978, p. 1
  12. The Australian, 24 October 1978, p. 2
  13. discussed on the ABC television programme 'Can We Help?' in 2007
  14. Ecker, Don, "Editorial: Skeptics or Debunkers?" from UFO Magazine, October 7, 2000
  15. VUFORS (1981), "Pilot Valentich, Death or Abduction?", The Australian Annual Flying Saucer Review, VUFORS.
  16. see Clark, 1998
  17. UFOs and Aircraft Close Encounters: The Frederick Valentich Accident from
  18. Based on their analysis of the transcript tape, Haines and Norman conclude that Valentich actually said "chasing me" rather than "stationary"

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