Individually Owned: 150,657
Corporate Owned: 137,281
Blue Grass Airport
Aircraft Accident/Incident Report
Lexington, Kentucky 40510
Wednesday, November 14, 2012 19:27 EST
NTSB Narrative Summary Released at Completion of Accident
Upon arrival at the intended destination airport during an instructional flight, the pilot receiving instruction attempted to extend the airplane’s landing gear. Only the nose gear and the left main landing gear extended and locked in the down position. Both pilots reported they attempted to retract the landing gear; however, the left main landing gear remained in the down and locked position and the nose landing gear’s position could not be determined. The flight instructor reported that he performed the emergency gear extension procedure specified in the airplane’s flight manual, but the right main landing gear did not extend or lock into position. The pilots elected to divert to a nearby airport. During the landing roll, the airplane veered off the runway, resulting in substantial damage to the elevator. An examination of the airplane revealed that a landing gear pressure hose had ruptured and the hydraulic fluid was depleted. It was constructed of material similar to that used in the automotive industry, thus, the hose likely was not an approved airplane part. No logbook entry was provided that disclosed when the hose was replaced or inspected. Because of the rupture, the lack of hydraulic fluid within the system precluded the right main landing gear from extending and locking as well as the left main and nose landing gear from retracting.
NTSB Probable Cause Narrative
The rupture of the landing gear’s hydraulic pressure hose, which resulted in the depletion of all of the hydraulic fluid, and the inability of the landing gear to raise or lower. Contributing to the accident was the installation of an unapproved hydraulic hose by unknown maintenance personnel.
Event Information
| Type of Event | Accident |
| Event Date | 11/14/2012 |
| Event Day of the Week | Wednesday |
| Time of Event | 1927 |
| Event Time Zone | Eastern Standard Time |
| Event City | Lexington |
| Event State | KENTUCKY |
| Event Country | -- |
| Zipcode of the event site | 40510 |
| Event Date Year | 2012 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 380207N |
| Event Location Longitude | 0843619W |
| Event Location Airport | Blue Grass Airport |
| Event Location Nearest Airport ID | LEX |
| 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 | 980 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1954 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | LEX |
| Elevation of weather observation facility | 980 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| 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) | 2 |
| Dew Point at event time (in degress fahrenheit) | -2 |
| Wind Direction (degrees magnetic) | 20 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.39 |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 32477 |
| NTSB Notification Source | FAA Southern C-ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Mar 11 2014 3:51PM |
| User who most recently changed record | gots |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9985B |
| NTSB Number | ERA13LA058 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 172RG |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 172RG1107 |
| Certified Max Gross Weight | 2658 |
| 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 | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Nov 2 2012 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | Unknown |
| Aircraft Owner Name | CHRISTIANSEN AVIATION INC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | WILMINGTON |
| Aircraft Owner State | DE |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 19803-2908 |
| Operator is an individual? | No |
| Operator Name | Eastern Kentucky University |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Richmond |
| Operator State | KY |
| Operator Country | USA |
| Operator Zip code | 40475 |
| Operator Code | -- |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | -- |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | I39 |
| Departure City | Richmond |
| Departure State | KY |
| Departure Country | USA |
| Departure Time | 1730 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | I68 |
| Destination City | Lebanon |
| Destination State | OH |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Mar 11 2014 3:52PM |
| User who most recently changed record | gots |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 04 |
| Runway Length | 7003 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |