ASN Wikibase Occurrence # 358462
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Date: | Saturday 12 August 1995 |
Time: | 19:04 LT |
Type: | Schweizer 269C |
Owner/operator: | Baltimore Police Dept. |
Registration: | N7511E |
MSN: | S1693 |
Total airframe hrs: | 863 hours |
Engine model: | Lycoming HIO-360-D1A |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Baltimore, MD -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Unknown |
Departure airport: | , MD (KMTN) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The police helicopter, along with ground units, was in pursuit of a suspect traveling on a dirt bike. The pursuit proceeded eastbound into a park and according to the pilot, he tried to fly ahead of the suspect. The pilot reported that he descended and turned south. He then decided to regain altitude, at which time, he heard or felt a vibration or thud; the next thing he remembers is being on the ground inverted. An observer aboard the helicopter reported the pilot, in a unsuccessful attempt to get ahead of the suspect, descended to about treetop height, leveled the helicopter, and then began to climb. He felt a vibration rumble through the helicopter followed by ground impact. Examination of the accident site revealed the helicopter came to rest on its left side with a separated 4 feet section of tailboom section located about 125 feet away. Examination of the aircraft did not disclose evidence of mechanical malfunction of the main rotor, tail rotor, drive system, flight controls, fuselage or engine. The engine was tested and operated at 3150 rpm for about 20 minutes at 25 inches of manifold pressure. Examination of the tailboom fracture surface revealed evidence of overstress and no evidence of pre-existing cracking was noted.
Probable Cause: The pilot's failure to maintain adequate terrain clearance which resulted in an inflight collision with the ground.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC95TA190 |
Status: | Investigation completed |
Duration: | 11 months |
Download report: | Final report |
|
Sources:
NTSB NYC95TA190
Location
Revision history:
Date/time | Contributor | Updates |
14-Mar-2024 14:41 |
ASN Update Bot |
Added |
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