ASN Wikibase Occurrence # 134079
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Saturday 18 January 1997 |
| Time: | 13:20 LT |
| Type: |  McDonnell Douglas MD 600N |
| Owner/operator: | Mcdonnell Douglas |
| Registration: | N9202L |
| MSN: | RN002 |
| Year of manufacture: | 1995 |
| Total airframe hrs: | 112 hours |
| Engine model: | Allison 250-C47M |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Flagstaff, AZ -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | (KFLG) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a certification test flight, the pilot was following test card procedures to establish parameters for a height-velocity diagram. He began an autorotation, using a 1-second delay (to simulate pilot reaction time) before lowering the collective. As the autorotation progressed, the helicopter developed a rate of descent that the pilot was unable to check. Subsequently, the helicopter touched down hard, the skids collapsed, and the tailboom was severed by the main rotor blades. The helicopter slid off the runway into snow and rolled onto its right side. Circumstances identified in this accident had been identified during previous investigations of flight test accidents with this helicopter, but that information had not been provided to this test pilot and flight test engineer.
Probable Cause: failure of the manufacturer to follow its directive to develop corrective measures in response to known accident data, and their failure to ensure that pertinent information (in engineering department) was communicated to the test pilot and flight test engineer (in flight test).
Accident investigation:
 |
|
Sources:
NTSB LAX97FA091
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Feb-2013 08:07 | TB | Updated [Aircraft type, Operator, Nature, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Apr-2024 17:09 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation