Let me be a little bit more clear with this. Dr. Mcabee writes:
"An unusual radar target was detected by the Wellington Air Traffic Control (WATCC) search radar in the apparent vicinity of the visually sighted cluster of lights."
Source: http://brumac.8k.com/NEW_ZEALAND/NZFlashingLight/NZFlashingLight.html
So, not even Dr. Mcabee claims that there was radar comfirmation of a visual observation. You are the only one claiming that.
“The captain turned on the weather radar in the mapping mode (M. E. L. Co., EL90; vertical fan beam 40 to 150 down; 3 sec sweep cycle; ranges: 20, 50, 150 nm) and immediately picked up a strong target in the direction of the light at a distance of about 18 nm.
(…)
About this time Fogarty and Grant came up to the flight deck and they, too, saw the bright lights. Grant said his initial impression was of a white-yellow sphere like a ping pong ball in a dark room and illuminated by a ray of light. Grant, who was standing behind Startup, also had a good look at the radar screen. He said that in his mind there was no doubt that the direction to the radar target, as indicated by well defined angle lines on the radar screen, was the same as the direction to the lights.
(…)
During this time Crockett filmed this light using his 100 mm zoom lens. In order to be certain that he obtained images he slowed the frame rate from the normal 24 per second to 10 per second (this would more than double the exposure of each frame). Crockett started filming from his middle seat but, within a minute or so of first seeing the light Crockett got out of his seat and crouched behind the copilot. At one time, to document where the film was taken, he unzoomed to show both the UFO and a small, dimly lit meter that is under the right side window (Figure 12).”
(Maccabee, B. (2005) A HISTORY OF THE NEW ZEALAND SIGHTINGS OF DECEMBER 31, 1978. (http://brumac.8k.com/)).(…)
About this time Fogarty and Grant came up to the flight deck and they, too, saw the bright lights. Grant said his initial impression was of a white-yellow sphere like a ping pong ball in a dark room and illuminated by a ray of light. Grant, who was standing behind Startup, also had a good look at the radar screen. He said that in his mind there was no doubt that the direction to the radar target, as indicated by well defined angle lines on the radar screen, was the same as the direction to the lights.
(…)
During this time Crockett filmed this light using his 100 mm zoom lens. In order to be certain that he obtained images he slowed the frame rate from the normal 24 per second to 10 per second (this would more than double the exposure of each frame). Crockett started filming from his middle seat but, within a minute or so of first seeing the light Crockett got out of his seat and crouched behind the copilot. At one time, to document where the film was taken, he unzoomed to show both the UFO and a small, dimly lit meter that is under the right side window (Figure 12).”