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Professional Opinion Needed On Accident Report  
User currently offlineHoundstooth From United States of America, joined Jan 2005, 3 posts, RR: 0
Posted (11 years 4 months 4 days 22 hours ago) and read 2933 times:

Last week, my family lost a close relative in a mid-air collision with an Air Force jet over Hollister, Oklahoma. He (Dierk Nash) had been hired to ferry a crop duster from it's manufacturer in Olney, Texas to a customer in South Dakota. Dierk had over 6000+ hours flying in 21 years and a spotless record. He was cleared of any wrongdoing by the FAA on Friday based on the information contained in the article below.


The NTSB preliminary report has been released and you can find it here :


My question to those of you with a more professional opinion than mine is, based on the preliminary report, do you see anything that would give you an indication of fault or is there any information contained in this report that might make you ask questions? I know this is very preliminary and maybe gives no sign of anything wrong, but any educated information provided would be greatly appreciated.

[Edited 2005-01-27 20:07:17]

4 replies: All unread, jump to last
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 1, posted (11 years 4 months 4 days 22 hours ago) and read 2917 times:

I'm not getting anything at that second link...

User currently offlineHoundstooth From United States of America, joined Jan 2005, 3 posts, RR: 0
Reply 2, posted (11 years 4 months 4 days 22 hours ago) and read 2903 times:

Try the link again.


User currently offlineAv8trxx From United States of America, joined Nov 2001, 657 posts, RR: 6
Reply 3, posted (11 years 4 months 4 days 22 hours ago) and read 2894 times:

The DFW crews that fly in & out of SPS are on constant look out as it's a militarytraining base. The controllers and pilots are often both in training and screw ups are common so extra vigilance is needed. I did my IOE in DFW and went into SPS a few times. My Capt said it's not uncommon for 'excursions' beyond what was assigned to happen and when it does it happens fast with a rookie at the controls. This incident makes me wonder.....

Here's part of a blurb about the accident from my Email news....
"The vast majority of midair collisions are in or near the pattern so investigators have their work cut out for them in the tragic meeting of an Air Tractor crop-duster and an Air Force T-37 5,000 feet above the wide-open spaces of Oklahoma on Tuesday morning. The Air Force pilots, instructor Capt. Christopher S. Otis and student 2nd Lt. Roderick V. James, bailed out safely but the Air Tractor pilot, Derek Nach, died. Hunting guide Jerry Mayfield reached the Tweet pilots first and said one of them told him he didn't see the collision coming. There have been similar events, before.

Nach was ferrying the brand-new Air Tractor from the plant in Olney, Texas, to its new owner in South Dakota. Investigators have declined detailed comment or speculation on the cause of the collision. The crash occurred near Hollister, Okla., in an area commonly used by the air training wings based at Sheppard AFB near Wichita Falls, Texas.

AVweb reported another military/civilian collision in November 2004. The NTSB's current synopsis and probable cause (a PDF file) are available online. After that collision, the F-16 pilot ejected safely and walked to a local house to use the phone. The Cessna pilot was killed. "

Probable cause in that one? Here's the findings:

The failure of the F-16 flight lead pilot and F-16 accident pilot to maintain an adequate visual lookout while maneuvering. Factors contributing to the accident were: the F-16 flight lead pilot’s decision to discontinue radar traffic advisory service, the F-16 flight lead pilot’s failure to identify a position error in his aircraft’s navigational system, the F-16 pilots subsequent inadvertent entry into class C airspace without establishing and maintaining required communications with air traffic control (ATC); and ATC’s lack of awareness that there was more than one F-16 aircraft in the formation flight, which reduced the ATC controllers ability to detect and resolve the conflict that resulted in the collision.

from http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X22313&key=1

User currently offlineHoundstooth From United States of America, joined Jan 2005, 3 posts, RR: 0
Reply 4, posted (11 years 4 months 4 days 18 hours ago) and read 2789 times:


Thank you for your reply.

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