Tulsa International Airport
Aircraft Accident/Incident Report

Tulsa, Oklahoma 74158
Wednesday, June 29, 1988 6:25 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT DID NOT HOLD A TYPE RATING OR WRITTEN AUTHORIZATION TO ACT AS PILOT IN COMMAND. THE CO-PILOT DID NOT HOLD A TYPE RATING OR WRITTEN AUTHORIZATION TO ACT AS SECOND IN COMMAND AND HIS MEDICAL HAD EXPIRED. THE AIRCRAFT DID NOT HAVE AN AIRWORTHINESS CERTIFICATE NOR HAD A SPECIAL FLIGHT PERMIT BEEN ISSUED. THE LEFT PROPELLER WENT INTO REVERSE DURING THE INITIAL CLIMB DUE TO CORROSION AND DETERIORATION OF THE WIRING THAT CONTROLLED THE PROPELLER. THE ACFT CRASHED OUT OF CONTROL AFTER COLLIDING WITH POWER LINES DURING TAKEOFF. IT STRUCK THE GROUND AND WENT THRU A FENCE THEN DOWN A SLOPE AND OVER AN EMBANKMENT. THE ACFT THEN BOUNCED ACROSS A STREET WHILE TURNING AROUND AND COLLIDING WITH A POWER LINE POLE TAIL FIRST. THE ACFT HAD TRAVELED ABOUT 537 FT FROM INITIAL GROUND CONTACT. ALL 3 ENGINES WERE STILL PRODUCING POWER WHEN THE ACFT CAME TO REST.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/29/1988
Event Day of the Week Wednesday
Time of Event 625
Event Time Zone Central Daylight Time
Event City TULSA
Event State OKLAHOMA
Event Country --
Zipcode of the event site 74158
Event Date Year 1988
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport TULSA INTERNATIONAL
Event Location Nearest Airport ID TUL
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 676
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 635 Central Daylight Time
Direction of event from weather observation facility (degrees) 170
Weather Observation Facility ID TUL
Elevation of weather observation facility 776
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 7000
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency FAA
NTSB Docket Number (internal use) 806
NTSB Notification Source --
NTSB Notification Date Jun 29 1988 12:00AM
NTSB Notification Time 740
Fiche Number and/or location -used to find docket information 36722
Date of most recent change to record Dec 13 2000 11:50AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3756Q
NTSB Number FTW88DPJ07
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name NORTHROP
Aircraft Model C-125A
Aircraft Series Identifier C-125A
Aircraft Serial Number 48-634
Certified Max Gross Weight 38000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 3
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection May 2 1988 12:00AM
Airframe hours since last inspection 56
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DARRYL G. GREENAMYER, INC.
Aircraft Owner Street Address BOX 1927
Aircraft Owner City RANCHO SANTA FE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92067
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code TUL
Departure City
Departure State
Departure Country
Departure Time 625
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code FOF
Destination City DAYTON
Destination State OH
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 26
Runway Length 7700
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --