ASN Wikibase Occurrence # 37816
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| Date: | Friday 15 May 1998 |
| Time: | 10:10 LT |
| Type: |  Rockwell Commander 114B |
| Owner/operator: | Qaulity Machining, Inc. |
| Registration: | N6059C |
| MSN: | 14649 |
| Total airframe hrs: | 80 hours |
| Engine model: | Lycoming IO-540-T4B5 |
| Fatalities: | Fatalities: 4 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Lagrange, WI -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Waukesha, WI (KUES) |
| (KCMH) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The accident airplane's pilot obtained a weather briefing for the accident flight the night before the flight. He filed an instrument flight rules (IFR) flight plan with the intention of flying the airplane at 154 knots. The airplane departed on the IFR flight plan and climbed to 6,900 feet above mean sea level (MSL) and maintained that altitude for about four minutes while on a southwesterly heading. Weather information showed cloud bases and tops to be about 6,000 and 10,000 feet MSL respectively in the airplane's immediate vicinity. The altitude began to vary about 200 to 300 feet above and below 6,900 feet MSL. The airplane's ground track changed a number of times during the flight. The aircraft heading changed as much as 90 degrees while altitude changes were occurring. The last FAA air traffic control radar contact with the airplane showed the altitude to be 4,500 feet MSL and the heading to be opposite of its original heading. Ground witnesses reported hearing the airplane's engine accelerating and decelerating followed by a "... ka-boom..." sound. One said he saw the airplane coming out of the clouds nose first and pointing at the ground. Another said he saw the airplane come out of the clouds tumbling without its empennage. The on-scene examination revealed no pre-existing anomalies with the airframe. Before flying the accident airplane as pilot-in-command, the pilot received 11.6 hours of flight training in the aircraft. His total time in the airplane was 23.2 hours according to his logbook. The pilot's logbook showed he had 18.5 hours of actual instrument flight time and 41.4 hours of simulated instrument time. His logbook showed he had flown .6 hours of simulated instruments in the accident airplane before the accident flight.
Probable Cause: the pilot not maintaining aircraft control during cruise flight and exceeding the airplane's design stress limits. Factors in this accident was the pilot's lack of total experience in the airplane and the clouds.
Accident investigation:
 |
|
Sources:
NTSB CHI98FA153
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Apr-2024 12:31 | ASN Update Bot | Updated [Time, Aircraft type, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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