Hard landing Accident McDonnell Douglas MD 500E (369E) N911PH, 02 Dec 2021
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ASN Wikibase Occurrence # 270159
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Time:12:58 LT
Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different    
McDonnell Douglas MD 500E (369E)
Owner/operator:St Louis County Police Department
Registration: N911PH
MSN: 0217E
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:Spirit of St Louis Airport (SUS/KSUS), St Louis, MO -   United States of America
Phase: Landing
Departure airport:Saint Louis-Spirit of St. Louis Airport, MO (SUS/KSUS)
Destination airport:Saint Louis-Spirit of St. Louis Airport, MO (SUS/KSUS)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The pilot reported that he intended to perform a straight-in autorotation that would terminate with a power on recovery procedure over the runway. The autorotation was performed without incident; however, the pilot did not advance the engine power in time for the recovery. The helicopter impacted the runway hard and came to rest upright on the skids. During the impact sequence, the main rotor blades contacted and severed the tail boom, which resulted in substantial damage.

Probable Cause: The pilot's failure to apply power during the recovery procedure for the practice autorotation, which resulted in a hard landing.


FAA register: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?NNumberTxt=911PH


Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 6 months
Download report: Final report


Revision history:

03-Dec-2021 05:39 Geno Added
03-Dec-2021 07:49 harro Updated [Aircraft type, Source]
03-Dec-2021 07:50 harro Updated [Embed code, Damage]
03-Dec-2021 07:51 harro Updated [Nature, Narrative]
03-Dec-2021 07:52 RobertMB Updated [Time, Aircraft type, Registration, Cn, Nature, Departure airport, Source, Embed code, Narrative]
03-Dec-2021 08:06 Aerossurance Updated [Narrative]
03-Dec-2021 08:08 Aerossurance Updated [Phase, Source, Embed code]
03-Dec-2021 14:28 johnwg Updated [Time, Phase, Source, Embed code, Narrative, Category]
05-Dec-2021 22:33 Captain Adam Updated [Source, Narrative]
06-Dec-2021 17:00 johnwg Updated [Source]
24-Jun-2022 13:22 ASN Update Bot Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Embed code, Narrative, Category, Accident report]
24-Jun-2022 13:28 harro Updated [Departure airport, Destination airport, Source, Embed code, Narrative]

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