Loss of Control in Flight · NTSB CEN16FA295
MOONEY M20J — Holmen, WI
| Date | July 28, 2016 |
| Location | Holmen, WI |
| Aircraft | MOONEY M20J |
| Purpose of flight | Personal |
| Conditions | Day · Instrument Meteorological Cond |
| Phase / occurrence | Uncontrolled descent Collision with terr/obj (non-CFIT) |
| Pilot age | 55 |
| Pilot total time | 1,456 hrs · Experienced |
| Time in type | 1,020 hrs |
| Fatalities | 1 |
Probable cause
NTSB findings
- Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- Aircraft-Aircraft oper/perf/capability-Performance/control parameters-(general)-Not attained/maintained - C
- Personnel issues-Experience/knowledge-Experience/qualifications-Recent instrument experience-Pilot - F
- Environmental issues-Conditions/weather/phenomena-Ceiling/visibility/precip-(general)-Effect on operation
What happened
The commercial pilot was conducting a personal instrument flight rules cross-country flight in day instrument meteorological conditions. As the airplane neared the destination airport, the center air traffic controller working the flight cleared the airplane for an instrument landing system approach, vectored the airplane onto a course to intercept the localizer, and instructed the pilot to contact the airport's air traffic control tower. The pilot established contact with the tower controller and requested radar vectors to intercept the localizer. The tower was not radar-equipped so the tower controller instructed the pilot to change frequencies back to the center air traffic controller for radar vectors. The pilot responded to the instruction, but there were no further radio transmissions from the pilot on the center frequency or the tower frequency. The airplane impacted terrain on a south heading about 5.6 miles north/northeast of runway 18. The wreckage path length, separation of airplane structure, and component damage were consistent with a high-speed, uncontrolled impact with terrain. Examination of the airplane wreckage confirmed flight control continuity, and the propeller displayed signatures consistent with engine power at the time of impact. The attitude indicator gyro exhibited rotational signatures, and the engine-driven vacuum pump exhibited torsional overstress consistent with operation at the time of impact. The wreckage did not display any mechanical anomalies that would have precluded normal airplane operation. An autopsy of the pilot was not performed, and no toxicology samples were available for testing. The pilot's logbook showed that his most recent instrument proficiency check took place about 3 years before the accident and that he did not meet recent instrument flight experience requirements for flight in instrument meteorological conditions.