DFW06IA025

NTSB incident investigation · Boeing 767-300ER · Houston, TX · December 16, 2005

Incident · No injuriesIncident investigationFinal report
Date
December 15, 2005, 18:05 local (Dec 16, 2005, 00:05 UTC)
Place
Houston, TX
Injuries
176 uninjured
Phase of flight
Taxi
Aircraft
N319UPBoeing 767-300ERN32404Boeing B737-924
Weather
Visual (VMC) · Dusk
Status
Completed · report April 25, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20051215029949I
Case key
62791

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

On this page

Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The captain's failure to maintain clearance from a parked airplane awaiting for a gate. A contributing factor was that taxi procedures were not issued by ground control to advise the captain that the ramp area where he was taxing was designated as a non-movement area and not under the tower's control. Another factor was that company notices to airmen (NOTAMS) were not issued to advise their pilots that tarmac markings in that particular ramp area were not accurate, and that the area was a non-movement area not under the control of the tower.

The captain's failure to maintain clearance from a parked airplane awaiting for a gate. A contributing factor was that taxi procedures were not issued by ground control to advise the captain that the ramp area where he was taxing was designated as a non-movement area and not under the tower's control. Another factor was that company notices to airmen (NOTAMS) were not issued to advise their pilots that tarmac markings in that particular ramp area were not accurate, and that the area was a non-movement area not under the control of the tower.

Analysis

See brief narrative for DFW06IA025A.

A cargo freighter was taxiing after landing to its loading area when it struck a parked airline passenger airplane that was waiting to enter its gate area. The cargo airplane was on the airport ground control frequency when the captain observed the airliner parked inside the double yellow lines, but he felt that the airplane was clear of its path. The passenger airplane was reported to be holding short of the gate due to traffic congestion in the gate area, with one engine running and monitoring its company ramp control frequency. The mishap occurred in the early evening, during the hours of darkness. After the collision, the airline passengers were deplaned via an airstair on to the ramp and then transported to the terminal. According to a current letter of agreement between the tower and the airport, this area of the ramp was established as a "non-movement area, " which is not under the control of the tower, including line markings. Neither airline had issued a notice to airmen (NOTAM) to its pilots regarding this area.

Factual narrative

A cargo freighter was taxiing after landing to its loading area when it struck a parked airline passenger airplane that was waiting to enter its gate area. The cargo airplane was on the airport ground control frequency when the captain observed the airliner parked inside the double yellow lines, but he felt that the airplane was clear of its path. The passenger airplane was reported to be holding short of the gate due to traffic congestion in the gate area, with one engine running and monitoring its company ramp control frequency. The mishap occurred in the early evening, during the hours of darkness. After the collision, the airline passengers were deplaned via an airstair on to the ramp and then transported to the terminal. According to a current letter of agreement between the tower and the airport, this area of the ramp was established as a "non-movement area, " which is not under the control of the tower, including line markings. Neither airline had issued a notice to airmen (NOTAM) to its pilots regarding this area.

The factual narrative525 words

On December 15, 2005, at 1805 central standard time (CST), a Boeing 767-300ER cargo-configured airplane, N319UP, operated by United Parcel Service (UPS) as flight 2774 sustained minor left wing damage when it struck the tail cone of a Boeing 737-924 passenger-configured airplane, N32404, operated by Continental Airlines, Inc. (COA) as flight 1423, while taxing after landing at the George Bush Intercontinental Airport (IAH), near Houston, Texas. N32404, which also sustained minor damage to its tail cone and left horizontal stabilizer, was holding short of its gate area. There were no reported injuries to the two pilots of N319UP or to the two pilots, five flight attendants, and 167 passengers of N32404. Visual meteorological conditions prevailed, and an instrument flight rules (IFR) flight plan was filed for the scheduled flights conducted under 14 Code of Federal Regulations Part 121. The last departure airport for N319UP was the Louisville International Airport-Standiford Field (SDF), near Louisville, Kentucky. The last departure airport for N32404 was the Sacramento International Airport (SMF), near Sacramento, California.

The UPS Captain stated that Houston Intercontinental (IAH) Ground Control had cleared N319UP to the ramp via taxiway "SF," after it landed on runway 27. As N310UP was taxiing along "SF," with the flight crew monitoring IAH Ground Control frequency, both pilots noticed the Continental 737 ahead and to their left, well inside the double yellow lines. They "felt the 737 was clear of our path."

The COA Captain stated that N32404 had been holding short of their assigned gate for about five minutes, with the parking brake set and one engine running, waiting to enter gate E-23. The ramp was congested and two other COA 737s were trying to exit the area. N32404 was monitoring Continental's East Ramp Control frequency for clearance to proceed to the gate. After the collision, the passengers were deplaned through the forward left passenger entry door via an air stair to the ramp and then into the terminal.

A letter of agreement between the Bush Intercontinental Tower and the Bush Intercontinental Airport effective March 12, 2004, established "non-movement areas" as: all ramps, aircraft parking areas, Taxiway SF from the south ramp to Taxiway NB, Taxiway NR from WW to Taxiway WB, Taxiway SD, Taxiway SE, Taxiway SC north of Taxiway SD, and the North Ramp connector. The pilot/controller glossary from the FAA's Air Traffic Control Manual (7110.65J) defines a "non-movement area" as: taxiways and apron (ramp) areas not under the control of air traffic.

Representatives from both operators stated that neither had issued any special notice to airmen (NOTAM) about the non-movement area; and the Jeppesen Information Services, a subscription service purchased by both airlines and provided to its pilots, did not depict taxiway SF as being a non-movement area. Jeppesen chart 70-9 (IAH airport diagram dated June 17, 2005) states, "Twys SD, SE, & SE North of Twy SD are designated non-movement areas operated by COA ramp control."

At 1653, the automated surface observing system at IAH reported wind from 290 at 3 knots, visibility of 10 statute miles, clear skies, temperature 12 degrees Celsius, dew point minus 02 degrees, and an altimeter setting of 30.13 inches of Mercury.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Collision between aircraft (other than midair)Taxi - from landing
Object - aircraft parked/standing
Clearance - not maintainedPilot in commandCause
Notams - not issuedCompany/operator managementFactor
Procedures/directives - not issuedAtc personnel(lcl/gnd/clnc)Factor
Collision between aircraft (other than midair)Standing - idling rotors
Object - aircraft moving on ground
Clearance - not maintainedFlightcrew of other aircraftCause

Aircraft · 2

Registration
N319UP
Reported as
Boeing 767-300ER
Category
Airplane
Serial number
27758
Airframe hours
23,117
Engine
General Electric CF6-80, 60,500 lbs thrust, turbo jet
Damage
Minor damage
Flight
Part 121
Operator
United Parcel Service Co.
Registered owner
United Parcel Service Co
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · December 1, 2005
Departed
SDF · Louisville, KY
Destination
IAH · Houston, TX
Flight plan
IFR
Airport
IAH · Houston Intercontinental

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Registration
N32404
Reported as
Boeing B737-924
Category
Airplane
Serial number
30121
Engine
General Electric CFM56 Series, 27,000 lbs thrust, turbo jet
Damage
Minor damage
Flight
Part 121
Operator
Continental Airlines, Inc.
Airworthiness certificate
Standard, Normal
Departed
SMF · Sacramento, CA
Destination
IAH · Houston, TX
Flight plan
IFR
Airport
IAH · Houston Intercontinental

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 4

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N319UP
Age
52
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
April 1, 2005
Seat
Left
Flight hours
10,000 total · 84 in the last 90 days · 43 in the last 30 days · 7 in the last 24 hours
Role
Co-pilot, aircraft N319UP
Age
41
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
September 1, 2005
Seat
Right
Flight hours
6,000 total · 130 in the last 90 days · 46 in the last 30 days · 6 in the last 24 hours
Role
Pilot, aircraft N32404
Age
43
Injuries
None
Certificates
Flight engineer, Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
August 1, 2005
Seat
Left
Flight hours
9,028 total · 7,261 in this make and model · 6,010 as pilot in command · 182 in the last 90 days · 49 in the last 30 days · 8 in the last 24 hours
Role
Co-pilot, aircraft N32404
Age
59
Injuries
None
Certificates
Flight engineer, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
August 1, 2005
Seat
Right
Flight hours
10,175 total · 3,750 in this make and model · 5,680 as pilot in command · 240 in the last 90 days · 72 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
290° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
54 °F, dew point 28 °F
Altimeter
30.12 inHg
Observed at
IAH

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.