ASN Wikibase Occurrence # 35816
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Tuesday 6 August 1991 |
| Time: | 08:11 LT |
| Type: |  Cessna 172M |
| Owner/operator: | Air Exec, Onc. |
| Registration: | N61568 |
| MSN: | 17264646 |
| Engine model: | Lycoming O-320-E2D |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Ottumwa, IA -
 United States of America
|
| Phase: | Approach |
| Nature: | Executive |
| Departure airport: | Fort Madison, IA (K27) |
| Ottumwa, IA (KOTM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING ARRIVAL, THE PILOT WAS CLEARED FOR AN ILS RUNWAY 31 APPROACH. AS HE CONTINUED THE APPROACH, THE AIRPLANE DESCENDED INTO TREES AND THE TERRAIN, INSIDE THE OUTER MARKER, 4.0 MILES FROM THE THRESHOLD AND .19 MILE TO THE LEFT OF CENTERLINE. INITIAL IMPACT WAS ON A HEADING OF 356 DEGREES MAGNETIC AT AN ELEVATION OF 820 FEET MSL. THE AIRPORT ELEVATION WAS 845 FEET MSL. MINIMUM DESCENT ALTITUDE (MDA) BEFORE REACHING THE ILS GLIDE SLOPE WAS 2800 FEET; MDA FOR A LOCALIZER ONLY APPROACH WAS 1200 FEET. DECISION HEIGHT (IF ESTABLISHED ON THE ILS LOCALIZER & GLIDEPATH) WAS 1041 FEET. SUBSEQUENT INVESTIGATION FAILED TO REVEAL ANY MECHANICAL MALFUNCTION OF THE AIRCRAFT OR SIGNIFICANT WEATHER PHENOMENA WHICH WOULD HAVE RESULTED IN THE ACCIDENT.
Probable Cause: IMPROPER IFR PROCEDURE BY THE PILOT BY NOT MAINTAINING THE PROPER MINIMUM DESCENT ALTITUDE (MDA) UNTIL ESTABLISHED ON THE ILS LOCALIZER AND GLIDEPATH.
Accident investigation:
 |
|
Sources:
NTSB CHI91FA254
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:22 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Apr-2024 13:05 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Destination airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation