GAA17CA507 · Cub Crafters Inc CC11 100
Twin Oaks Airpark Cub Crafters Inc CC11 100 · Accident: loss of control in flight during landing
From Stark's Twin Oaks Airpark (7S3) to Stark's Twin Oaks Airpark (7S3)
Event
- NTSB case
- GAA17CA507
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Cub Crafters Inc CC11 100
- Aircraft type
- Cub Crafters CC11
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N599CC
- Operator
- Twin Oaks Airpark
- Onboard fatalities
- Unknown
- Route
- From Stark's Twin Oaks Airpark (7S3), Hillsboro, ORTo Stark's Twin Oaks Airpark (7S3), Hillsboro, OR
- Aircraft age
- About 8 years (built 2009)
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Landing
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control in flight
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Action/decision
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The student pilot of the tailwheel-equipped airplane was practicing crosswind takeoffs and landings with the flight instructor. During the second landing, a few feet above the runway on short final, the airplane's nose turned sharply to the left. The student reported that his flight instructor yelled a command, took over the controls, and added full power. The flight instructor reported that, after he took the flight controls, he attempted to go around but was unsuccessful. The airplane continued to the left through low brush and down an embankment. The tailwheel struck the edge of the embankment, and the airplane then nosed over.
Both wings and wing struts sustained substantial damage.
The student pilot and flight instructor reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
An automated weather observation station located about 7 miles north of the accident airport reported that, about 8 minutes after the accident, the wind was from 310° at 11 knots. The airplane landed on runway 2.
Probable cause
The student pilot’s failure to maintain airplane control while landing in crosswind conditions and the flight instructor’s delayed remedial action.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record GAA17CA507
- Event ID
- 20170824X14615
- Case number
- GAA17CA507
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: abd53e7e4002b9dc11d77bd3c01f7a3c4b54ff4a3b34e2961fc835595c385112; retrieved 2026-09-16T05:44:57.069Z.