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TED Airlines Airbus A320-232 incident

3 Aug 2005 · Denver, CO, United States

Airbus A320-232 and Airbus Industrie A320-232 · Incident: collision between aircraft (not in flight) while taxiing

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Event

NTSB case
DFW05IA200
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Incident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
Airline
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Aircraft 1 · Airbus A320-232

Aircraft type
Airbus A320
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N496UA
Operator
TED Airlines
Onboard fatalities
Unknown
Route
From Phoenix Sky Harbor International Airport (PHX), Phoenix, AZTo Denver International Airport (DEN), Denver, CO
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 121: Air Carrier
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Taxi
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Collision between aircraft (not in flight)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Minor

Aircraft 2 · Airbus Industrie A320-232

Aircraft type
Airbus A320
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N472UA
Operator
TED Airlines
Onboard fatalities
Unknown
Route
From Denver International Airport (DEN), Denver, COTo Harry Reid International Airport (LAS), Las Vegas, NV
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 121: Air Carrier
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Standing
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Collision between aircraft (not in flight)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Minor

Cause areas

  • Flightcrew of other aircraft › Clearance, not maintained
  • Ground personnel › Procedures/directives, not followed
  • Pilot in command › Clearance, not maintained

Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.

NTSB narrative

While taxiing east on Taxiway AA toward Gate A-48, an Airbus A320 collided with another Airbus A320 from the same company that had been pushed back from Gate A-40 and was holding on the ramp for the inbound traffic to clear. According to company policy, airplanes departing Concourse A were pushed back until the main landing gear wheels sat on the centerline of Taxiway AS, the northern taxiway. This policy assured airplanes taxiing on Taxiway AA (the southern taxiway) adequate wingtip clearance (about 30 feet), assuming their nose wheel stayed on the centerline. A witness said the holding airplane was pushed back too far from Taxiway AS and the taxiing airplane's nose wheel was on the centerline of Taxiway AA. As the inbound airplane taxied behind the holding airplane, its left winglet cut through the bottom section of holding airplane's tail cone. The flight crew on the inbound airplane recognized that the holding airplane was pushed back further than normal from the gate and elected to increase their wing tip clearance by moving to the right of the Taxiway AA centerline approximately 5 to 6 feet. As they approached the holding airplane, the captain reduced forward speed to a crawl, determined there was sufficient clearance between the two airplanes, and continued to taxi to their assigned gate. The flight crew onboard the holding airplane felt the airplane move slightly as the inbound airplane taxied behind them. Shortly after, both flight crews were notified of the collision.

Probable cause

The captain's failure to maintain sufficient clearance while taxiing to an assigned gate, which resulted in a collision with an airplane that had been pushed back (and holding) from another gate. Also causal was the tug operator's failure to follow published company procedures resulting in the holding airplane being pushed back too far, which reduced wingtip clearance of the taxiing airplane.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record DFW05IA200
Event ID
20050817X01269
Case number
DFW05IA200
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (6)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 9a4ea6a75eddd1c5c0107126ad4ab62f4098c4ea327cfc8fafcd31a02269021c; retrieved 2026-09-18T14:59:35.301Z.
  • The NTSB's operator name is blank for N496UA; the operator shown is the name the NTSB records it doing business as.
  • The NTSB's operator name is blank for N472UA; the operator shown is the name the NTSB records it doing business as.