Houston Intl Airport
Aircraft Accident/Incident Report

Houston, Texas 77032
Thursday, August 23, 1990 17:20 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PASSENGERS & WITNESSES REPORTED THAT DURING TAKEOFF, THE AIRCRAFT YAWED BOTH LEFT & RIGHT AFTER LIFT-OFF. IT THEN VEERED TO THE LEFT & CONTACTED THE GROUND IN A LEFT WING LOW ATTITUDE BETWEEN THE RUNWAY & A PARALLEL TAXIWAY. AN INVESTIGATION REVEALED EVIDENCE THAT THE LEFT ENGINE HAD SUSTAINED A PARTIAL LOSS OF POWER DUE TO A MALFUNCTIONING FUEL PUMP. THERE WERE INDICATIONS THE POWER LOSS WAS NOT SUFFICIENT TO TRIGGER OR ALLOW COMPLETION OF THE AUTOFEATHERING OPERATION OF THE LEFT PROPELLER. FEATHERING OF THE LEFT PROPELLER HAD BEEN MANUALLY INITIATED, BUT THE PROPELLER HAD NOT REACHED THE FEATHER POSITION BEFORE IMPACT. MANUAL FEATHERING OPERATION REQUIRED THE FEATHERING PUMP BUTTON BE HELD ABOUT 5 SEC. 'V' SPEEDS (KIAS) FOR THIS FLT WERE: V1 92, VR 99, V2 110, NORMAL VMCA (DEAD ENGINE PROPELLER FEATHERED, FLAPS SET FOR TAKEOFF & AIRCRAFT OUT OF GROUND EFFECT) 101, VMCA (DEAD ENGINE PROPELLER UNFEATHERED/WINDMILLING & FLAPS SET FOR TAKEOFF) 127 KTS. EXAM OF THE ACTUATORS REVEALED THE GEAR WAS RETRACTED & THE FLAPS WERE SET FOR TAKEOFF.

NTSB Probable Cause Narrative

PARTIAL FAILURE OF THE LEFT ENGINE FUEL PUMP, WHICH RESULTED IN A PARTIAL LOSS OF POWER IN THE LEFT ENGINE, BUT NOT ENOUGH OF A POWER LOSS TO TRIGGER AND/OR COMPLETE THE AUTOFEATHERING OPERATION OF THE LEFT PROPELLER, THUS ALLOWING INSUFFICIENT TIME FOR THE CREW TO MANUALLY FEATHER THE PROPELLER OR ATTAIN VMC (FOR THE AIRCRAFT CONFIGURED WITH AN UNFEATHERED PROPELLER).

Event Information

Type of Event Accident
Event Date 8/23/1990
Event Day of the Week Thursday
Time of Event 1720
Event Time Zone Central Daylight Time
Event City HOUSTON
Event State TEXAS
Event Country --
Zipcode of the event site 77032
Event Date Year 1990
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport HOUSTON INTL
Event Location Nearest Airport ID IAH
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 110
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1720 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID IAH
Elevation of weather observation facility 110
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 20000
Lowest Non-Ceiling Height 10000
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) 29
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29.9
Density Altitude (feet) 1560
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 3
Injury Total Minor 8
Injury Total None --
Injury Total Serious 4
Injury Total All 15
Investigating Agency NTSB
NTSB Docket Number (internal use) 2175
NTSB Notification Source --
NTSB Notification Date Aug 23 1990 12:00AM
NTSB Notification Time 1730
Fiche Number and/or location -used to find docket information 44801
Date of most recent change to record Dec 18 2002 11:38AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N80RD
NTSB Number FTW90MA161
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name GRUMMAN
Aircraft Model G-159
Aircraft Series Identifier G-159
Aircraft Serial Number 198
Certified Max Gross Weight 36000
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 17
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 3 1990 12:00AM
Airframe hours since last inspection 40
Airframe Hours 5343
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name RDC MARINE, INC
Aircraft Owner Street Address 5051 WESTHEIMER
Aircraft Owner City HOUSTON
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77056
Operator is an individual? --
Operator Name ROWAN COMPANIES
Operator Same as Owner? No
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) Executive/Corporate
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code IAH
Departure City
Departure State
Departure Country
Departure Time 1719
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code MSY
Destination City NEW ORLEANS
Destination State LA
Destination Country
Specific Phase of Flight Takeoff
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 14L
Runway Length 12000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --