Aviation Crash Map

Nihon YS-11A-600 N128MP

15 March 1989 · West Lafayette, Indiana, United States · Fatal

Summary

On 15 March 1989 at about 12:26 local time, a Nihon YS-11A-600 registered N128MP, operated by Mid Pacific Airlines, was involved in an accident near West Lafayette, Indiana, United States. 2 people were on board and 2 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

The record

Date
at 12:26
Classification
Accident
Location
West Lafayette, Indiana, United States
Nearest airport
Purdue University Airport (LAF)
Coordinates
40.4403, -86.9107
Aircraft
Nihon YS-11A-600
Registration
N128MP
Category
Airplane
Engines
2
Operator
Mid Pacific Airlines
Operating rule
Part 121: Air Carrier
Purpose of flight
Unknown
Phase of flight
Not recorded
Route
Terre Haute → West Lafayette
Aircraft damage
Destroyed
Weather
VMC
Light
Dawn
NTSB number
CHI89MA057

People

2 people died.

On board Died Serious Minor Uninjured
2 2 0 0 0

Probable cause

A LOSS OF CONTROL DUE TO THE IMPROPER INFLIGHT DECISIONS BY THE CREW AND THE UNDETECTED ACCUMULATION OF ICE ON THE LEADING EDGE OF THE HORIZONTAL STABILIZER, DURING FLIGHT IN A FORWARD CENTER OF GRAVITY CONDITION AND EXACERBATED BY THE EXTENSION OF FULL LANDING FLAPS.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

AN IFR FLIGHT WAS TERMINATED WITH A VISUAL APPROACH. CONDITIONS WERE CONDUCIVE TO AIRFRAME ICING. THE AIRCRAFT WAS BEING POSITIONED EMPTY, WITH A CG AT 22.1% MAC. ON SHORT FINAL, AT APPROXIMATELY 400 FT AGL, 35 DEGREES OF LANDING FLAP WAS SELECTED. THE AIRCRAFT WAS OBSERVED TO PITCH DOWNWARD TO AN UNUSUAL ATTITUDE AND TO ENTER A STEEP DESCENT. A PARTIAL RECOVERY WAS OBSERVED BEFORE THE AIRCRAFT IMPACTED A DIRT HILL 500 FT SHORT OF RWY 28. EXAMINATION OF THE AIRFRAME AFTER THE ACCIDENT REVEALED 1/2 TO 3/4 INCH OF RIME ICE ADHERING TO THE LEADING EDGE OF THE HORIZONTAL STABILIZER. NO ICE WAS FOUND ON ANY OTHER PORTION OF THE AIRFRAME. EVIDENCE IN THE COCKPIT INDICATED THAT ENGINE, PITOT, AND WINDSHIELD ANTI-ICE SYSTEMS WERE ON, BUT WING/EMPENNAGE DEICE WAS OFF. NO EVIDENCE OF A POWERPLANT OR SYSTEMS MALFUNCTION WAS FOUND.

Quoted verbatim from the NTSB record.

Other Nihon YS-11A accidents

Date Aircraft Location Operator Outcome Died
3 Apr 1990 Nihon YS-11A-600F
N112MP
West Lafayette, Indiana, United States - No injuries -
27 Mar 1991 Nihon YS-11A-600
N173RV
Anchorage, Alaska, United States Reeve Aleutian Airways, Inc. No injuries -
10 Apr 1987 Nihon YS-11A
N118MP
Honolulu, Hawaii, United States - Serious injuries -
13 Jan 1987 Nihon YS-11A-500
N906TC
Remmington, Indiana, United States - No injuries -
16 Feb 1982 Nihon YS-11A
N169RV
King Salmon, Alaska, United States
no coordinates
Reeve Aleutian Minor injuries -
18 Apr 1981 Nihon YS-11A
N173RV
Sand Point, Alaska, United States
no coordinates
Reeve Aleutian Airways, Inc. No injuries -

All 17 records for this type

Other accidents in this area

Date Aircraft Location Operator Outcome Died
30 Sep 1989 Beechcraft A36TC
N2YS
Greencastle, Indiana, United States - Fatal 3
5 Sep 1989 Boeing 767-231
N608TW
Knox, Indiana, United States Trans World Airlines Inc. Minor injuries -
14 Jan 1989 Piper PA-28-180
N3331R
Valparaiso, Indiana, United States - No injuries -
29 Oct 1989 Bell 47G-2A-1
N500CD
Plymouth, Indiana, United States - No injuries -
22 Mar 1989 Cessna 150L
N5228Q
Sellersburg, Indiana, United States - No injuries -
26 Mar 1989 Beechcraft 95-B-55
N27WF
Crothersville, Indiana, United States Casebolt, FON Minor injuries -

All 170,864 records in United States