ASN Wikibase Occurrence # 37507
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| Date: | Wednesday 4 October 1995 |
| Time: | 19:34 LT |
| Type: |  Cessna 172N |
| Owner/operator: | George O. Cowburn |
| Registration: | N9461E |
| MSN: | 17272271 |
| Total airframe hrs: | 4610 hours |
| Engine model: | Lycoming O-320-H2AD |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Caton, NY -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Dunkirk, NY (KDKK) |
| Elmira, NY (KELM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During arrival at night, the pilot contacted approach control (located in the control tower) and received vectors for an ILS runway 6 approach. During the first approach, the radar controller observed that the airplane drifted left of course and descended below the glideslope. This resulted in a low-altitude aural alarm, and the radar controller issued a low-altitude alert. The pilot made a missed approach and stated that he 'had a mismatch of the two compasses.' He was vectored for a second approach and was instructed to maintain 3,000 feet until established on the approach. The pilot was then transfered to tower frequency and was cleared to land. About 6 miles from the runway, the airplane again drifted left of course and another low-altitude alert was activated. The tower controller stated that he did not hear the low-altitude aural alarm, because he was focused on another airplane that was landing. A supervisor controller, situated on the other side of the control cab, heard the alarm and prompted the tower controller to take remedial action. However, the airplane crashed into an open field outside the outer marker in a wings-level attitude. Impact occurred at an elevation of 1,500 feet. The ILS glideslope crossing altitude at the outer marker was 2,800 feet. The extent of a 'mismatch of the two compasses' was not verified; no preimpact mechanical malfunction of the airplane was found. The pilot had flown nine instrument approaches since receiving an instrument competency check on 4/27/95 and had logged 15.7 hours of night flight time.
Probable Cause: The pilot's improper IFR procedure by failing to maintain proper altitude, while on the initial approach for an ILS. A factor relating to the accident was: failure of the tower controller to issue a safety advisory.
Accident investigation:
 |
|
Sources:
NTSB NYC96FA002
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] |
| 09-Apr-2024 11:32 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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