Individually Owned: 150,657
Corporate Owned: 137,281
Nashville International Airport
Aircraft Accident/Incident Report
Nashville, Tennessee 37217
Thursday, April 26, 2001 6:29 CDT
NTSB Narrative Summary Released at Completion of Accident
According to the pilot, the freighter flight was normal in all aspects until the landing gear were extended for landing at destination. The left main landing gear, (LMLG) indicated "unsafe", and all attempts, using the emergency/abnormal checklists and telephone/radio-relayed communications with company maintenance, failed to extend it. An emergency, LMLG retracted landing was performed with minimal damage to the aircraft. Postcrash investigation revealed that company maintenance installed a one-way check valve in the LMLG extend hydraulic lines instead of a restricted flow valve. The wrongly installed valve had no factory specification or part number attached, and the tag reportedly removed from it at installation possessed the wrong factory specification number, and the correct vendor' s part number. The company maintenance manual states that upon completion of the valve installation, a leak and operational test of the MLG retract/extension system be performed. The valve installation mechanic and the company inspector both stated that the finished job was leak and "ops" tested.
NTSB Probable Cause Narrative
The failure of company maintenance personnel to install the correct hydraulic landing gear extension component, and the failure of company maintenance inspection personnel to comply with proper post maintenance test procedures, resulting in the impossibility of the LMLG to extend, and the subsequent LMLG up landing. A factor in the accident was the improper identification tag marking on the replacement component, and no marking on the component, itself.
Event Information
| Type of Event | Incident |
| Event Date | 4/26/2001 |
| Event Day of the Week | Thursday |
| Time of Event | 629 |
| Event Time Zone | Central Daylight Time |
| Event City | Nashville |
| Event State | TENNESSEE |
| Event Country | -- |
| Zipcode of the event site | 37217 |
| Event Date Year | 2001 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | Nashville International |
| Event Location Nearest Airport ID | BNA |
| 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 | 599 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 635 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | BNA |
| Elevation of weather observation facility | 599 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| 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) | 8 |
| Air Temperature at event time (in degrees celsius) | 6 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.28 |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11510 |
| NTSB Notification Source | FAA COMM CNTR |
| NTSB Notification Date | Apr 26 2001 12:00AM |
| NTSB Notification Time | 800 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Feb 20 2002 1:46PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Nashville |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8076U |
| NTSB Number | MIA01IA129 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | McDonnell Douglas |
| Aircraft Model | DC-8-71F |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 45941 |
| Certified Max Gross Weight | 328000 |
| 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 | 7 |
| Number of Engines | 4 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Apr 18 2001 12:00AM |
| Airframe hours since last inspection | 27 |
| Airframe Hours | 81335 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Aero USA dba GPA Corp. |
| Aircraft Owner Street Address | 83 Wooster Heights Rd. Lee Farm Corp. Park |
| Aircraft Owner City | Danbury |
| Aircraft Owner State | CT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 06810 |
| Operator is an individual? | No |
| Operator Name | Emery Worldwide Airlines, Inc. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | One Emery Plaza, Dayton Int'l Airport |
| Operator City | Vandalia |
| Operator State | OH |
| Operator Country | USA |
| Operator Zip code | 45377 |
| Operator Code | RRXA |
| Owner has at least one certificate | -- |
| 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 | Scheduled |
| Indicates Domestic or International Flight | International |
| Operator carrying Pax/Cargo/Mail | Cargo |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | DAY |
| Departure City | Dayton |
| Departure State | OH |
| Departure Country | USA |
| Departure Time | 545 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | BNA |
| Destination City | Nashville |
| Destination State | TN |
| Destination Country | USA |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | No |
| Evacuation occurred | Yes |
| Date of most recent change to record | Jan 28 2002 8:04AM |
| User who most recently changed record | KENJ |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 31 |
| Runway Length | 11030 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |