ASN Wikibase Occurrence # 42189
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| Date: | Wednesday 14 April 1999 |
| Time: | 14:11 LT |
| Type: |  Cessna 152 |
| Owner/operator: | Twin Ports Flying Service |
| Registration: | N4611B |
| MSN: | 15283551 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 9166 hours |
| Engine model: | Lycoming O-235-L2C |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Superior, WI -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | (KSUW) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A witness reported, '... the plane was in an extended dive. I could hear the engine running throughout the entire dive...' and that it was, '...at an extremely sharp angle of descent, heading west. The plane continued down long past the time I thought it should have pulled up until finally it reached the tree-top of my vision, disappeared from my view and I heard more of a muffled impact 'thud' than an actual explosive sound.' The airplane impacted the ground inverted in a steep nose down impact angle. The inspection of the airplane revealed no pre-impact anomalies. Student pilots who received flight instruction from the accident CFI reported the CFI would demonstrate spins within the first three flights of instruction. One student pilot reported the CFI had demonstrated a wingover and a spin during his third instructional flight, the first flight with the accident CFI. A witness reported the accident flight was the student pilot's first instructional flight he had received in any aircraft.
Probable Cause: the Certified Flight Instructor failed to maintain control of the airplane.
Accident investigation:
 |
|
Sources:
NTSB CHI99FA129
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 26-Nov-2017 12:41 | ASN Update Bot | Updated [Departure airport, Source, Narrative] |
| 08-Apr-2024 07:10 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Source, Narrative, Category, Accident report] |
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