William P. Hobby Airport
Aircraft Accident/Incident Report

Houston, Texas 77061
Wednesday, January 19, 2011 15:04 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot was returning to the airport after a local maintenance flight. While completing the before-landing checklist, the pilot did not detect an incomplete gear extension. After touchdown, at 70 knots, both main landing gear legs collapsed. The nose gear remained extended during the event and the rear fuselage and left horizontal stabilizer contacted the concrete pavement. The operator’s subsequent examination of the hydraulic power pack revealed that the electric pump motor was inoperative. The failure of the power pack before the end of the gear extension cycle would result in a fully extended nose gear and a partial extension of the main landing gear legs.

NTSB Probable Cause Narrative

The failure of the landing gear to fully extend and lock in the down position due to the inoperative electric pump motor.

Event Information

Type of Event Accident
Event Date 1/19/2011
Event Day of the Week Wednesday
Time of Event 1504
Event Time Zone Central Standard Time
Event City Houston
Event State TEXAS
Event Country --
Zipcode of the event site 77061
Event Date Year 2011
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 293826N
Event Location Longitude 0951626W
Event Location Airport William P. Hobby Airport
Event Location Nearest Airport ID HOU
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 46
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Central Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID KHOU
Elevation of weather observation facility 46
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 2000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.99
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 28174
NTSB Notification Source FAA ASW Regional Comm Center -
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 24 2011 9:34AM
User who most recently changed record gamw
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6187S
NTSB Number CEN11CA155
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model R182
Aircraft Series Identifier NO SERIES
Aircraft Serial Number R18201644
Certified Max Gross Weight 3100
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 30 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 2475
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name CONVERSION AVIATION INC
Aircraft Owner Street Address 8 GREENWAY PLAZA STE 930
Aircraft Owner City HOUSTON
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 77046
Operator is an individual? No
Operator Name CONVERSION AVIATION INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 8 GREENWAY PLAZA STE 930
Operator City HOUSTON
Operator State TX
Operator Country USA
Operator Zip code 77046
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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 No
Departure Point Same as Event No
Departure Airport Code LBX
Departure City Angleton
Departure State TX
Departure Country USA
Departure Time 1445
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code HOU
Destination City Houston
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 9 2011 3:32PM
User who most recently changed record latt
Since inspection or accident Time of Accident
Event Location Runway Number and Location 12L
Runway Length 5148
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --