Individually Owned: 150,657
Corporate Owned: 137,281
Dayton Intl Airport
Aircraft Accident/Incident Report
Dayton, Ohio 45377
Wednesday, April 8, 1992 21:06 EDT
NTSB Narrative Summary Released at Completion of Accident
THE LEFT SIDE NOSE WHEEL TIRE WAS DAMAGED DURING PUSHBACK, WHEN THE TOW BAR FAILED. THE TIRE WAS REPLACED AND WHILE BEING SERVICED ON THE AIRPLANE, THE TIRE RIM FAILED, FATALLY INJURING THE MECHANIC. EXAMINATION OF THE BOTTLE USED TO SERVICE THE TIRE SHOWED TWO PRESSURE SCALES, BARS ON THE OUTSIDE AND PSI ON THE INSIDE. ONE BAR EQUALS 14.7 PSI. THE HIGH END OF THE SCALE WAS 10,000 PSI AND THE BOTTLE WAS PRESSURIZED TO 4000 PSI. THE TIRE WAS TO BE SERVICED TO 150 PSI. A CHECK OF THE REGULATOR AFTER THE ACCIDENT DISCLOSED IT WAS PROPERLY CALIBRATED. ACCORDING TO THE FAA, THE TIRE RIM WAS STRESSED TO 580 PSI. EXAMINATION OF THE FRACTURE SURFACE FOUND, 'NO...MANUFACTURING OR MATERIAL DEFECTS...FRACTURE SURFACE IS CONSISTENT WITH A TENSILE OVERLOAD TYPE OF FAILURE.' ACCORDING TO THE COMPANY, NO LOW PRESSURE REGULATORS WERE AVAILABLE. THEY ARE KEPT UNDER LOCK WHEN NOT IN USE AND THE RESPONSIBLE PERSON HAD ALREADY GONE HOME FOR THE DAY.
NTSB Probable Cause Narrative
A FAILED WHEEL RIM FOLLOWING AN INADVERTENT OVER INFLATION BY THE MECHANIC. ADDITIONAL CAUSES WERE THE FAILURE OF THE MECHANIC TO BE AWARE OF THE PRESSURE BEING USED AND HIS FAILURE TO FOLLOW PROCEDURES. A FACTOR RELATED TO THE ACCIDENT WAS THE FAILURE OF THE COMPANY TO MAKE AVAILABLE LOW PRESSURE REGULATORS FOR THEIR MECHANICS DURING NORMAL WORK HOURS.
Event Information
| Type of Event | Accident |
| Event Date | 4/8/1992 |
| Event Day of the Week | Wednesday |
| Time of Event | 2106 |
| Event Time Zone | Eastern Daylight Time |
| Event City | DAYTON |
| Event State | OHIO |
| Event Country | -- |
| Zipcode of the event site | 45377 |
| Event Date Year | 1992 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | DAYTON INTL |
| Event Location Nearest Airport ID | DAY |
| 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 | 1009 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2050 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 1 |
| Weather Observation Facility ID | DAY |
| Elevation of weather observation facility | 1009 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Night/Bright |
| Lowest Ceiling Height | 9500 |
| Lowest Non-Ceiling Height | 5500 |
| 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) | 7 |
| Air Temperature at event time (in degrees celsius) | 16 |
| Dew Point at event time (in degress fahrenheit) | 12 |
| Wind Direction (degrees magnetic) | 260 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 1 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | 28 |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 45898 |
| Date of most recent change to record | Dec 11 2000 2:51PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N926L |
| NTSB Number | NYC92LA076 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | MCDONNELL DOUGLAS |
| Aircraft Model | DC-9-32 |
| Aircraft Series Identifier | DC-9-32 |
| Aircraft Serial Number | 47172 |
| Certified Max Gross Weight | 108000 |
| 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 | 105 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | Jan 2 2000 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Unknown |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | POLARIS AIRCRAFT LEASING CORP |
| Aircraft Owner Street Address | 4 EMBARCADERO CENTER, 4TH FLR |
| Aircraft Owner City | SAN FRANCISCO |
| Aircraft Owner State | CA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 94111 |
| Operator is an individual? | -- |
| Operator Name | TRANS WORLD AIRLINES |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 100 SOUTH BEDFORD ROAD |
| Operator City | MT KISCO |
| Operator State | NY |
| Operator Country | |
| Operator Zip code | 10549 |
| Operator Code | TWAA |
| 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/Cargo |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 0 |
| Departure Time Zone | |
| Destination Same as Local Flt | -- |
| Destination Airport Code | STL |
| Destination City | ST. LOUIS |
| Destination State | MO |
| Destination Country | |
| Specific Phase of Flight | Standing |
| 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 | 0 |
| Runway Length | 0 |
| Runway Width | 0 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |