McDonnell Douglas 369E N684F
13 June 1992 · Yukon, Oklahoma, United States · No injuries
Summary
On 13 June 1992 at about 15:35 local time, a McDonnell Douglas 369E registered N684F, operated by Oklahoma City Police Dept, was involved in an accident near Yukon, Oklahoma, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 15:35
- Classification
- Accident
- Location
- Yukon, Oklahoma, United States
- Nearest airport
- Clarence E. Page (F29)
- Coordinates
- 35.5104, -97.7608
- Aircraft
- McDonnell Douglas 369E
- Registration
- N684F
- Category
- Helicopter
- Engines
- 1
- Operator
- Oklahoma City Police Dept
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Public Use
- Phase of flight
- Not recorded
- Route
- Oklahoma City → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- FTW92GA160
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
THE DUAL STUDENT'S FAILURE TO MAINTAIN ADEQUATE MAIN ROTOR RPM AND FAILURE TO LEVEL THE HELICOPTER AT TOUCHDOWN. FACTORS WERE THE MANUFACTURER'S TRAINING PILOT'S INADEQUATE SUPERVISION AND THE DUAL STUDENT PERFORMING THE MANEUVER.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE MANUFACTURER'S TRAINING PILOT WAS CONDUCTING UNAPPROVED 'ZERO AIRSPEED' AUTOROTATION TRAINING IN CONJUNCTION WITH ANNUAL PROFICIENCY TRAINING FOR THE POLICE AVIATION SUPPORT UNIT. HE WAS NOT A CERTIFIED FLIGHT INSTRUCTOR. AFTER HE DEMONSTRATED THE MANEUVER, THE POLICE PILOT ATTEMPTED IT. THE HELICOPTER CONTACTED THE GROUND WITH LOW MAIN ROTOR RPM AND NOT IN A LEVEL ATTITUDE. THE MAIN ROTOR BLADES SEVERED THE TAIL OF THE HELICOPTER. THE POLICE PILOT STATED THAT THIS AND OTHER EMERGENCY PROCEDURE MANEUVERS WERE NOT COVERED IN THE BRIEFING CONDUCTED BEFORE THE FLIGHT.
Quoted verbatim from the NTSB record.
Other McDonnell Douglas 369 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 Nov 1992 | McDonnell Douglas 369E | Juniper Flats, California, United States | Riverside County Sheriff's DEP | Unknown | - |
| 12 Feb 1992 | McDonnell Douglas 369E | Clinton, Maryland, United States | Govt. of the Dist. of Columbia | Unknown | - |
| 11 Sep 1992 | McDonnell Douglas 369D | Eagle, Alaska, United States | Tundra Copters Inc. | Fatal | 3 |
| 14 Feb 1992 | McDonnell Douglas 369D | Mesa, Arizona, United States | Maricopa County Sheriffs | Unknown | - |
| 12 May 1992 | McDonnell Douglas 369E | San Diego, California, United States | Department of Justice | Unknown | - |
| 19 Jun 1993 | McDonnell Douglas 369D | Half Moon Bay, California, United States | Skydance Operations, Inc. | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 23 Feb 1992 | Ryan NAVION A | Oklahoma City, Oklahoma, United States | Hopcus, Jerry A. | Serious injuries | - |
| 27 Feb 1992 | Cessna 172F | Mc Alester, Oklahoma, United States | CAC, Inc. | Minor injuries | - |
| 8 Mar 1992 | Piper PA-28-180 | Mangum, Oklahoma, United States | Stanley R. Wright | Serious injuries | - |
| 29 Feb 1992 | Burnett TEENIE II | Edmond, Oklahoma, United States | Zinn, Albert M. | Minor injuries | - |
| 30 Mar 1992 | Weatherly 201B | Weatherford, Oklahoma, United States | Ruben J. James | No injuries | - |
| 31 Mar 1992 | Cessna T188C | Cordel, Oklahoma, United States | Greggory L. Little | No injuries | - |