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Crash of a Piper PA-46-310P Malibu in Milaca: 2 killed

Date & Time: Dec 30, 2010 at 0958 LT
Operator:
Registration:
N9103N
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Aitkin - Beaumont
MSN:
46-08021
YOM:
1986
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
2078
Aircraft flight hours:
2466
Circumstances:
About 20 minutes after departing on a cross-country flight, the pilot acknowledged the air traffic controller’s clearance to climb to 17,000 feet mean sea level (msl). Radar data indicated that the airplane reached a maximum altitude of 16,800 feet msl. The airplane then entered a right descending turn followed by a left descending turn. While in the left turn, the pilot informed the controller, “I lost my autopilot; I’m in an unusual attitude.” The pilot stated this same information two more times in response to transmissions by the controller. The pilot’s last transmission was that he was busy trying to recover the airplane. Witnesses heard the airplane flying overhead for several minutes, but they could not see it due to the low ceiling. A postaccident examination of the airplane did not reveal any pre accident mechanical malfunctions or failures with the engine that would have precluded normal operation. Examination of the autopilot system revealed a loose screw inside the pitch servo housing. The screw was one of two that secured the high wattage resistor to the solenoid housing. Observed corrosion within the screw threads was consistent with the threads not being engaged in a nut or other internally threaded feature. No mechanical damage or arcing was visible on the screw. The operational impact of the loose screw is unknown. The pilot’s instrument flying proficiency could not be determined. According to log records, the pilot last flew 4.5 months before the accident. The airplane was in instrument meteorological conditions when the pilot stated that he was trying to recover from the unusual attitude. The pilot did not follow prescribed procedures for an autopilot malfunction. Weather data indicates that the airplane most likely encountered turbulence and icing conditions during the flight; however, the airplane was equipped with an ice protection system. Although ethanol was found during the toxicology tests, the levels varied greatly among the tissue/fluid samples. The investigation was unable to determine if the presence of ethanol was from ingestion or from postmortem production or contamination. The detected level of diphenhydramine, an over-the-counter sedating antihistamine used to treat allergies, was above therapeutic levels and likely contributed to the pilot’s inability to recover from the unusual attitude.
Probable cause:
The pilot did not recover from an unusual attitude while operating in instrument meteorological conditions following a disconnect of the autopilot system for undetermined reasons. Contributing to the accident were the pilot’s lack of recent flight experience and impairment due to diphenhydramine.
Final Report:

Crash of a Piper PA-46-310P Malibu in Aitkin: 4 killed

Date & Time: Jun 2, 1996 at 1317 LT
Registration:
N9114Q
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
International Falls – Ottumwa
MSN:
46-08049
YOM:
1986
Crew on board:
1
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
1817
Captain / Total hours on type:
1084.00
Aircraft flight hours:
1049
Circumstances:
The airplane was in cruise flight at 17,000 feet msl when the pilot told Minneapolis ARTCC 'We're picking up some ice and rain, and we're going to turn around.' ARTCC approved the request. Two minutes later the pilot told ARTCC that 'We're looking for some help to get around this weather southbound.' ARTCC told the pilot that he could turn either east or west. The pilot turned west, then 4 minutes later turned back to the south. The pilot then told ARTCC that they were still encountering weather. ARTCC directed the pilot to turn north and then east whenever he could. Approximately 1 minute later ARTCC radar showed the airplane in a rapid descent. The pilot then told ARTCC 'Minneapolis center, N9114Q is out of control.' The pilot had received a FSS briefing prior to takeoff, and was advised of convective conditions and precipitation building to the south along his intended route of flight. The airplane was approximately 548 pounds over maximum takeoff weight.
Probable cause:
The pilot's continued flight into known adverse weather conditions and the pilot exceeding the design stress limits of the airplane. Factors contributing to this accident were: the thunderstorms, hail, and wind gusts, and the airplane's over maximum gross weight condition.
Final Report: