ASN Wikibase Occurrence # 273729
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| Date: | Monday 3 January 2022 |
| Time: | 12:05 LT |
| Type: |  Cessna 120 |
| Owner/operator: | Nextgen Flight Academy Inc |
| Registration: | N76646 |
| MSN: | 11086 |
| Year of manufacture: | 1946 |
| Engine model: | Continental C85 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Upland-Cable Airport (CCB/KCCB) , CA -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Riverside Municipal Airport, CA (RAL/KRAL) |
| Upland-Cable Airport, CA (CCB/KCCB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot of the tail wheeled-equipped airplane reported that, he was on an approach to land at an uncontrolled airport behind two helicopters. An airport surveillance video showed the accident airplane flying over the runway about 20 seconds after a helicopter was in a slow hover taxi adjacent to the runway. The pilot reported that he saw the helicopter and decided to land long to maintain separation. He added that while on short final, he saw a helicopter 'cross' the runway, so he increased engine power to full and attempted a go-around. About one-third of the way down the length of the runway, the airplane encountered the helicopter's downwash, and the airplane entered an uncommanded steep right bank. The pilot applied opposite aileron, but he was not able to maintain control of the airplane. Subsequently, the airplane impacted right of the runway and sustained substantial damage to the right wing and fuselage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
According to Federal Aviation Administration Advisory Circular No. 90-23G, Aircraft Wake Turbulence, 'pilots should avoid taxiing or flying within a distance of three rotor diameters of a helicopter hovering or in a slow hover taxi, as the downwash can contain high wind speeds.
Probable Cause: The pilot's loss of airplane control during a go-around as it encountered wake turbulence from a slow hover taxiing helicopter.
Accident investigation:
 |
|
Sources:
NTSB WPR22LA072
FAA register: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=76646
Location
Media:
#OTD 2022 Cessna 120 caught in helicopter wake turbulence #flightsafety #aviationsafety pic.twitter.com/02b7IUTGCP
— Aerossurance (@Aerossurance) January 3, 2024
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Jan-2022 05:00 | Geno | Added |
| 04-Jan-2022 09:01 | RobertMB | Updated [Time, Aircraft type, Operator, Nature, Destination airport, Narrative] |
| 04-Jan-2022 14:05 | johnwg | Updated [Time, Aircraft type, Registration, Cn, Operator, Phase, Source, Damage, Narrative, Category] |
| 04-Jan-2022 14:16 | Captain Adam | Updated [Operator, Source, Narrative] |
| 24-Jun-2022 12:33 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
| 24-Jun-2022 12:35 | harro | Updated [Location, Destination airport, Source, Narrative] |
| 24-Jun-2022 13:09 | harro | Updated [Embed code] |
| 03-Jan-2024 12:46 | Aerossurance | Updated [Embed code] |
Corrections or additions? ... Edit this accident description
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