Individually Owned: 150,657
Corporate Owned: 137,281
Orlando International Airport
Aircraft Accident/Incident Report
Orlando, Florida 32827
Sunday, June 23, 1996 11:16 EDT
NTSB Narrative Summary Released at Completion of Accident
The airplane experienced a total loss of hydraulic pressure and hydraulic fluid while on descent to the destination airport. The flight crew conducted emergency procedures (hydraulic failure/landing gear failure) in accordance with the airplane flight manual (AFM)/quick reference handbook (QRH) with negative results. Subsequently, a wheels up landing was made. Examination of the airplane revealed a rupture of the No. 1 engine-driven hydraulic pump pressure hose. Review of the AFM and QRH emergency procedures revealed the manual did not discriminate between hydraulic or electrical failures. The procedures listed in the maintenance manual for lowering the landing gear by the free-fall mechanism were different from the AFM/QRH. Functional test of the landing gear system, using the AFM/QRH, resulted in the landing gear failing to extend due to hydraulic blockage in the landing gear solenoid valve. Functional test of the landing gear system, using the free-fall procedure contained in the maintenance manual, resulted in the extension of the landing gear.
NTSB Probable Cause Narrative
the aircraft manufacture's inadequate written procedures in the airplane flight manual/quick reference handbook, which resulted in a failure of the landing gear to extend and a wheels up emergency landing, due to hydraulic blockage in the landing gear solenoid valve. Factors relating to the accident were: the chafed and ruptured hydraulic line and the subsequent hydraulic leak, which resulted in loss of hydraulic pressure and an inoperative normal landing gear extension system.
Event Information
| Type of Event | Accident |
| Event Date | 6/23/1996 |
| Event Day of the Week | Sunday |
| Time of Event | 1116 |
| Event Time Zone | Eastern Daylight Time |
| Event City | ORLANDO |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 32827 |
| Event Date Year | 1996 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | ORLANDO INTERNATIONAL |
| Event Location Nearest Airport ID | MCO |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 96 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1114 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | MCO |
| Elevation of weather observation facility | 96 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 25000 |
| Lowest Non-Ceiling Height | 2000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 8 |
| Air Temperature at event time (in degrees celsius) | 32 |
| Dew Point at event time (in degress fahrenheit) | 26 |
| Wind Direction (degrees magnetic) | 290 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 32 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1093 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jun 23 1996 12:00AM |
| NTSB Notification Time | 1120 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 8 2000 10:04AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N168CA |
| NTSB Number | MIA96FA162 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Embraer |
| Aircraft Model | 120 |
| Aircraft Series Identifier | 120 |
| Aircraft Serial Number | 168 |
| Certified Max Gross Weight | 25353 |
| 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 | 33 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Jun 22 1996 12:00AM |
| Airframe hours since last inspection | 3 |
| Airframe Hours | 16775 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | COMAIR |
| Aircraft Owner Street Address | P.O. BOX 75021 |
| Aircraft Owner City | CINCINNATI |
| Aircraft Owner State | OH |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 45275 |
| 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 | COMA |
| Owner has at least one certificate | Yes - certificate holder |
| 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 | Scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | NAS |
| Departure City | NASSAU |
| Departure State | OF |
| Departure Country | |
| Departure Time | 903 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | MCO |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Landing |
| 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 | 36R |
| Runway Length | 10953 |
| Runway Width | 200 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |