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NTSB Report
May 7, 1991 · Mitsubishi MU-2B-20 · N106MA
Kenefic, OK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 7, 1991
Injury Outcomes
1 injury (1 fatality), 2 uninjured
Location
Kenefic, OK
Aircraft
Mitsubishi MU-2B-20
Tail Number
N106MA
Operator
Corporate Aviation Services
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW91FA074
THE PILOTS OF MITSUBISHI MU-2, N106MA, & A CESSNA 310 WITH NO REGISTRATION NUMBER ELECTED TO FLY IN FORMATION AT NIGHT, THOUGH NEITHER PILOT HAD FORMAL TRAINING IN FORMATION FLYING NOR EXPERIENCE IN NIGHT FORMATION. THEY JOINED UP IN FLIGHT & THE MU-2 PILOT WAS FLYING ON THE WING OF THE CESSNA 310. THE MU-2 PILOT COMMUNICATED THAT HE WAS GOING TO CHANGE POSITIONS FROM THE RIGHT SIDE TO THE LEFT SIDE OF THE 310C. THE CESSNA 310 PILOT & HIS PASSENGER LOST SIGHT OF THE MU-2 WHEN IT DROPPED BACK TO A POSITION IN THE REAR OF THE CESSNA 310. SOON THEREAFTER, THE 2 AIRCRAFT COLLIDED & THE MU-2 WENT OUT OF CONTROL & CRASHED. THE RIGHT HORIZONTAL STABILIZER WAS TORN FROM THE CESSNA 310 & THE 310'S EMPENNAGE, RIGHT WING & PROPS WERE DAMAGED, BUT IT WAS LANDED WITHOUT INJURY TO ITS OCCUPANTS. AN INVESTIGATION REVEALED THE TAIL LIGHT OF THE CESSNA 310 WAS INOPERATIVE.
NTSB Probable Cause
IMPROPER PLANNING/DECISION BY THE PILOTS OF BOTH AIRCRAFT, AND THE MITSUBISHI PILOT'S MISJUDGMENT OF HIS POSITION, WHILE ATTEMPTING TO FLY FORMATION AT NIGHT WITH AN AIRCRAFT THAT DID NOT HAVE ALL NAVIGATION LIGHTS OPERATIVE. FACTORS RELATED TO THE ACCIDENT WERE: BOTH PILOT'S LACK OF TRAINING IN THE TYPE OF OPERATION, DARKNESS, INOPERATIVE NAVITGATION (TAIL) LIGHT ON THE CESSNA 310, AND THE LACK OF VISUAL PERCEPTION THAT WOULD HAVE BEEN AVAILABLE TO THE MITSUBISHI PILOT.
Full Narrative
THE PILOTS OF MITSUBISHI MU-2, N106MA, & A CESSNA 310 WITH NO REGISTRATION NUMBER ELECTED TO FLY IN FORMATION AT NIGHT, THOUGH NEITHER PILOT HAD FORMAL TRAINING IN FORMATION FLYING NOR EXPERIENCE IN NIGHT FORMATION. THEY JOINED UP IN FLIGHT & THE MU-2 PILOT WAS FLYING ON THE WING OF THE CESSNA 310. THE MU-2 PILOT COMMUNICATED THAT HE WAS GOING TO CHANGE POSITIONS FROM THE RIGHT SIDE TO THE LEFT SIDE OF THE 310C. THE CESSNA 310 PILOT & HIS PASSENGER LOST SIGHT OF THE MU-2 WHEN IT DROPPED BACK TO A POSITION IN THE REAR OF THE CESSNA 310. SOON THEREAFTER, THE 2 AIRCRAFT COLLIDED & THE MU-2 WENT OUT OF CONTROL & CRASHED. THE RIGHT HORIZONTAL STABILIZER WAS TORN FROM THE CESSNA 310 & THE 310'S EMPENNAGE, RIGHT WING & PROPS WERE DAMAGED, BUT IT WAS LANDED WITHOUT INJURY TO ITS OCCUPANTS. AN INVESTIGATION REVEALED THE TAIL LIGHT OF THE CESSNA 310 WAS INOPERATIVE.
Flight
Event TypeAccident
Event Time05:10 CDT
Nearest AirportTEXOMA (0nm N)
Runway0
Runway Length3500 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftMitsubishi MU-2B-20
Tail NumberN106MA
Aircraft CategoryAir
DamageDestroyed
OperatorCorporate Aviation Services
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsGarrett · TPE-331 · Turboprop · 665 | Continental · IO-470-D · Reciprocating · 260
Seats2
People & Injuries
Injury Summary1 injury (1 fatality), 2 uninjured
Fatal1
Serious0
Minor0
Uninjured2
Total3
Crew 1Age 28 · First Class
Crew 2Age 25 · Second Class
Conditions
ConditionsVMC
LightDark Night
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO