Accident description
Last updated: 19 December 2014
Status:Final
Date:Wednesday 15 March 1989
Time:07:26
Type:NAMC YS-11A-300F
Operator:Mid Pacific Airlines
Registration: N128MP
C/n / msn: 2139
First flight: 1970
Total airframe hrs:24088
Engines: 2 Rolls-Royce Dart 542-10J
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 2 / Occupants: 2
Airplane damage: Destroyed
Airplane fate: Written off (damaged beyond repair)
Location:Lafayette-Purdue University Airport, IN (LAF) (   United States of America) show on map
Crash site elevation: 185 m (607 feet) amsl
Phase: Approach (APR)
Nature:Ferry/positioning
Departure airport:Terre Haute-Hulman Field, IN (HUF/KHUF), United States of America
Destination airport:Lafayette-Purdue University Airport, IN (LAF/KLAF), United States of America
Narrative:
The aircraft was on short finals (at 400 feet agl, 35deg flaps) when it suddenly pitched down, entering a steep descent. It partially recovered before impact with a dirt hill, 500 feet short of the Runway 28. Ice accretion on the horizontal stabilizer leading edge was found (0,50-0,75 inch).

PROBABLE CAUSE: "A loss of control due to the improper in-flight decisions by the crew and the undetected accumulation of ice on the leading edge of the horizontal stabilizer, during flight in a forward centre of gravity condition and exacerbated by the extension of full landing flaps. "

Sources:
» ICAO Adrep Summary 4/90 (#27)
» NTSB


Follow-up / safety actions

NTSB issued 3 Safety Recommendations

Show all AD's and Safety Recommendations

Photos

photo of NAMC YS-11A-300F N128MP
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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Terre Haute-Hulman Field, IN to Lafayette-Purdue University Airport, IN as the crow flies is 111 km (69 miles).

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