NYC01LA075

NTSB accident investigation · Boeing B-737-832 · Boston, MA · February 3, 2001

Accident · No injuriesLimited investigationFinal report
Date
February 3, 2001, 12:25 local (17:25 UTC)
Place
Boston, MA
Injuries
135 uninjured
Phase of flight
Taxi
Aircraft
N3735DBoeing B-737-832N802USMcDonnell Douglas MD-81
Weather
Visual (VMC) · Day
Status
Completed · report January 23, 2002
Report
Approved by Office Director
Parties
FAA
Case key
51450

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

On this page

Probable cause

The inadequate visual lookout by theMD-81's tug driver during the pushback operation.

The inadequate visual lookout by the MD-81's tug driver during the pushback operation.

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
Visual lookout - inadequateGround personnelCause
Collision between aircraft (other than midair)Taxi - pushback/tow
Visual lookout - inadequateGround personnelCause

Analysis

The Boeing had stopped behind a MD-81 on the yellow lead-in taxi line about 150 feet short of the jetway to await wing-walkers. A wing-walker soon arrived and instructed the Boeing to remain stationary. The MD-81 was then pushed back from its gate into the Boeing. The tug operator for the MD-81 stated that he began to start the pushback once he observed the Boeing pass by. During the pushback the tug operator was "watching the nosewheel and tow bar," and was distracted by other vehicle movements. The tug operator also lost sight of the Boeing at that time.

The Boeing had stopped behind a MD-81 on the yellow lead-in taxi line about 150 feet short of the jetway to await wing-walkers. A wing-walker soon arrived and instructed the Boeing to remain stationary. The MD-81 was then pushed back from its gate into the Boeing. The tug operator for the MD-81 stated that he began to start the pushback once he observed the Boeing pass by. During the pushback the tug operator was "watching the nosewheel and tow bar," and was distracted by other vehicle movements. The tug operator also lost sight of the Boeing at that time.

Factual narrative

On February 3, 2001, about 1225 eastern standard time, a Boeing 737-832, N3735D, operated by Delta Airlines Inc., as flight 2276, was substantially damaged when it was struck by another airplane, while standing at the General Edward Lawrence Logan International Airport, Boston, Massachusetts. The other airplane, a McDonnell Douglas MD-81, N802US, operated by US Airways as flight 1215, sustained minor damage. None of the 6 crewmembers and 25 passengers aboard the Boeing were injured, nor were any of the 6 crewmembers and 98 passengers onboard the McDonnell Douglas. Visual meteorological conditions prevailed at the time of the accident. The Boeing had arrived on an instrument rules flight plan from the La Guardia Airport, Flushing, New York, and the McDonnell Douglas had an instrument rules flight plan on file to Pittsburgh International Airport, Pittsburgh, Pennsylvania. The scheduled passenger flights were conducted under 14 CFR Part 121.

According to the captain of the Boeing, he was taxiing the airplane to Shuttle Gate 4, and had turned the airplane towards the gate to line up with the jetway. The captain then stopped the airplane on the yellow lead-in taxi line about 150 feet short of the jetway to await wing-walkers. A wing-walker soon arrived and instructed the flightcrew to remain stationary. As the airplane remained stopped, the flightcrew felt a shudder and vibration throughout the airplane. After being advised that his airplane had been struck by another airplane, the captain taxied to the jetway uneventfully and parked.

A flight attendant who witnessed the accident from Shuttle Gate 5, stated she observed the Boeing being stopped by a marshalling agent as it approached Gate 4, to await wing walkers. The flight attendant then looked out the window and observed a US Airways MD-81 being pushed back. A wing-walker, who was located off the right side of the MD-81, began to run towards the tug pushing back the airplane, signaling an emergency stop. The tug operator did not appear to respond and the MD-81's tail struck the Boeing.

The tug operator for the MD-81 stated that he began to start the pushback once he observed the Boeing pass by. During the pushback the tug operator was "watching the nosewheel and tow bar," and was distracted by other vehicle movements. The tug operator also lost sight of the Boeing at that time.

Damage reported by the operators included vertical stabilizer and rudder damage to the Boeing 737, and right horizontal stabilizer damage to the MD-81.

On February 3, 2001, about 1225 eastern standard time, a Boeing 737-832, N3735D, operated by Delta Airlines Inc., as flight 2276, was substantially damaged when it was struck by another airplane, while standing at the General Edward Lawrence Logan International Airport, Boston, Massachusetts. The other airplane, a McDonnell Douglas MD-81, N802US, operated by US Airways as flight 1215, sustained minor damage. None of the 6 crewmembers and 25 passengers aboard the Boeing were injured, nor were any of the 6 crewmembers and 98 passengers onboard the McDonnell Douglas. Visual meteorological conditions prevailed at the time of the accident. The Boeing had arrived on an instrument rules flight plan from the La Guardia Airport, Flushing, New York, and the McDonnell Douglas had an instrument rules flight plan on file to Pittsburgh International Airport, Pittsburgh, Pennsylvania. The scheduled passenger flights were conducted under 14 CFR Part 121.

According to the captain of the Boeing, he was taxiing the airplane to Shuttle Gate 4, and had turned the airplane towards the gate to line up with the jetway. The captain then stopped the airplane on the yellow lead-in taxi line about 150 feet short of the jetway to await wing-walkers. A wing-walker soon arrived and instructed the flightcrew to remain stationary. As the airplane remained stopped, the flightcrew felt a shudder and vibration throughout the airplane. After being advised that his airplane had been struck by another airplane, the captain taxied to the jetway uneventfully and parked.

A flight attendant who witnessed the accident from Shuttle Gate 5, stated she observed the Boeing being stopped by a marshalling agent as it approached Gate 4, to await wing walkers. The flight attendant then looked out the window and observed a US Airways MD-81 being pushed back. A wing-walker, who was located off the right side of the MD-81, began to run towards the tug pushing back the airplane, signaling an emergency stop. The tug operator did not appear to respond and the MD-81's tail struck the Boeing.

The tug operator for the MD-81 stated that he began to start the pushback once he observed the Boeing pass by. During the pushback the tug operator was "watching the nosewheel and tow bar," and was distracted by other vehicle movements. The tug operator also lost sight of the Boeing at that time.

Damage reported by the operators included vertical stabilizer and rudder damage to the Boeing 737, and right horizontal stabilizer damage to the MD-81.

Aircraft · 2

Registration
N3735D
Reported as
Boeing B-737-832
Category
Airplane
Serial number
30381
Airframe hours
276
Engine
CFM International CFM56-7B, 24,000 lbs thrust, turbo fan
Damage
Substantial damage
Flight
Part 121
Registered owner
Delta Air Lines Inc
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · January 21, 2001
Departed
DCA · Washington, DC
Destination
BOS · Boston, MA
Flight plan
IFR
Airport
BOS · Logan International Airport

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
N802US
Reported as
McDonnell Douglas MD-81
Category
Airplane
Serial number
48036
Airframe hours
53,366
Engine
P&W JT8D-217, 20,850 lbs thrust, turbo fan
Damage
Minor damage
Flight
Part 121
Registered owner
US Airways Inc
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · January 16, 2001 · 188 hours before
Departed
BOS · Boston, MA
Destination
PIT · Pittsburgh, PA
Flight plan
IFR
Airport
BOS · Logan International Airport

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 N3735D
Age
50
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
January 25, 2001
Seat
Left
Flight hours
7,443 total · 110 in this make and model · 28 in the last 90 days · 11 in the last 24 hours
Role
Co-pilot, aircraft N3735D
Age
40
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
September 4, 2000
Seat
Right
Flight hours
6,278 total · 293 in this make and model · 95 in the last 90 days · 11 in the last 24 hours
Role
Pilot, aircraft N802US
Age
47
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
February 13, 2000
Seat
Left
Flight hours
17,500 total · 5,413 in this make and model
Role
Co-pilot, aircraft N802US
Age
32
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
December 3, 1999
Seat
Right
Flight hours
7,295 total · 1,312 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 14 knots, gusting 19
Visibility
10 statute miles
Lowest ceiling
None
Temperature
34 °F, dew point 14 °F
Altimeter
30.04 inHg
Observed at
BOS