DEN83FTE08

NTSB accident investigation · Mitsubishi MU-2B-40 · Fort Collins, CO · March 19, 1983

Accident · No injuriesFinal report
Date
March 18, 1983, 21:35 local (Mar 19, 1983, 04:35 UTC)
Place
Fort Collins, CO
Injuries
6 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N181RSMitsubishi MU-2B-40
Weather
Instrument (IMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19830318016559A
Case key
16012

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Airport facilities,runway/landing area condition - icyFactor
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Airport facilities,runway/landing area condition - snowbankFactor
Main gear collapsedLanding - roll
Landing gear,main gear strut - failure,totalFactor
Landing gear,main gear strut - overloadFactor

Analysis

The plt stated that the acft drifted left after touchdown. Props were brought to the beta range, & correction was added with right spoiler & right rudder. There was an immediate dropping or turning to the left & the acft hit a snowridge. Both engs were feathered & the acft slid along the snowridge. The left wing tip was striking the ground along with the left side of the fuselage. The left main landing gear drag strut was sheared flush with the barrel causing the gear to collapse. Metallurgical tests revealed that the rod had been overloaded & had not been weakened by corrosion, cracks or fatigue prior to the accident.

Aircraft

Registration
N181RS
Reported as
Mitsubishi MU-2B-40
Category
Airplane
Serial number
426SA
Airframe hours
655
Engine
Airesearch TPE-331-10, 665 lbs thrust, turbo prop
Damage
Substantial damage
Flight
Executive/Corporate · Part 91
Operator
Newcomb Securites Co.
Registered owner
Interplan Leasing Corp.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · February 17, 1983 · 58 hours before
Departed
GRI · Grand Island, NE
Destination
FNL · Ft. Collins, CO
Flight plan
IFR
Airport
FNL · Ft. Collins/Loveland Muni, runway 33, 6,500 × 100 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificates
Commercial, Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
3,901 total · 124 in this make and model · 3,754 as pilot in command · 160 in the last 90 days · 65 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
70° at 5 knots
Lowest ceiling
1,200 ft overcast
Temperature
21 °F, dew point 19 °F
Observed at
FCL, 9 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.