ASN Wikibase Occurrence # 365035
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| Date: | Saturday 29 June 1991 |
| Time: | 19:00 LT |
| Type: |  Hughes 269A |
| Owner/operator: | Dse Inc. |
| Registration: | N48323 |
| MSN: | 580887 |
| Engine model: | LYCOMING HIO-360-B1H |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Manassas, VA -
 United States of America
|
| Phase: | Taxi |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE ON A LOCAL FLIGHT, THE PILOT EXECUTED A STEEP DESCENDING TURN TO APPROXIMATELY 150 AGL, TO OVERFLY THE PASSENGER'S HOUSE. SHORTLY AFTER LEVELING AT 150 FEET, WITH 'SLOW FORWARD AIRSPEED,' THE HELICOPTER MADE A 'SUDDEN QUICK TURN TO THE RIGHT AND PITCHED NOSE DOWN...,' DESCENDING INTO TREES. THE WIND AT THE TIME OF THE ACCIDENT WAS CALM. ACCORDING TO THE HEIGHT VELOCITY DIAGRAM FOR THE HUGHES 269A, OPERATION OF THE HELICOPTER AT 150 FEET AND ZERO TO 52 KNOTS OF INDICATED AIRSPEED SHOULD BE AVOIDED.
Probable Cause: THE PILOT'S IMPROPER INFLIGHT DECISION AND HIS FAILURE TO MAINTAIN PROPER AIRSPEED AT A LOW ALTITUDE WHICH RESULTED IN THE HELICOPTER SETTLING WITH POWER. A FACTOR IN THE ACCIDENT WAS THE PILOT'S FAILURE TO FOLLOW PRESCRIBED PROCEDURES/DIRECTIVES.
Accident investigation:
 |
|
Sources:
NTSB NYC91LA159
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Mar-2024 21:29 | ASN Update Bot | Added |
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