NYC01LA076

NTSB accident investigation · Boeing 767-300ER · Boston, MA · December 27, 2000

Accident · Serious injuriesLimited investigationFinal report
Date
December 27, 2000, 16:17 local (21:17 UTC)
Place
Boston, MA
Injuries
1 serious, 79 uninjured; on the ground: 1 serious
Damage
No damage
Phase of flight
Taxi
Aircraft
N155DLBoeing 767-300ER
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2001
Report
Approved by Office Director
Parties
FAA FSDO-01
FAA report
20001227033719A
Case key
51709

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

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Probable cause

The vehicle driver's improper decision to pass behind an aircraft with operating engines, which resulted in an encounter with jet blast.

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.

Propeller blast or jet exhaust/suctionTaxi
Planning/decision - improperDriver of vehicleCause
Propeller/jet blast encounterGround personnel

Analysis

The flightcrew was taxiing to the gate, but stopped short to wait for a required third wingwalker. As the airplane was stopped, several ground vehicles passed behind it along a vehicle service road. At the time the third wingwalker arrived, a ramp serviceman was operating a tug along the vehicle service road. As the tug passed behind the airplane, the airplane began to taxi to the gate. The jet blast blew an empty container, which was being towed by the tug. As the ramp serviceman attempted to retrieve the container, he was also blown to the ground. The serviceman sustained head injuries and was transported to the local hospital. The local port authority regulations prohibited operation of ground vehicles behind an airplane with operating engines. However, the serviceman was not cited for any violations by the port authority.

Factual narrative

On December 27, 2000, about 1617 Eastern Standard Time, a Boeing 767-300ER, N155DL, was not damaged while taxiing at General Edward Lawrence Logan International Airport (BOS), Boston, Massachusetts. The airplane was operated by Delta Air Lines Inc. as flight 1986. None of the 10 crewmembers or 69 passengers were injured, while one ramp serviceman sustained serious injuries. Visual meteorological conditions prevailed for the flight that originated at Los Angeles International Airport, Los Angeles, California. An instrument flight rules flight plan was filed for the scheduled air carrier flight conducted under 14 CFR Part 121.

According to witnesses, the airplane landed on Runway 33L at BOS, and taxied to Gate C26. At the gate, there were only two wingwalkers to assist the airplane. Delta's standard operating procedures required three wingwalkers, so the flightcrew stopped the airplane, before the gate, and waited for the third wingwalker.

While the airplane was at idle power, waiting for the third wingwalker, several ground vehicles passed behind the airplane along a vehicle service road. At the time the third wingwalker arrived, a ramp serviceman from another airline was operating a tug along the vehicle service road. As the tug passed behind the airplane, the airplane began to taxi into the gate. The jet blast blew an empty container, which was being towed by the tug. The ramp serviceman stopped the tug, got out of the vehicle, and attempted to retrieve the container. As he attempted to retrieve the container, the jet blast threw him into the container, then threw him clear of the container onto the pavement.

The ramp serviceman was admitted to a local hospital for head injuries.

According to a Massachusetts Port Authority (MASSPORT) shift supervisor, MASSPORT regulations prohibited operation of ground vehicles behind an airplane with operating engines. However, he added that the driver of the tug was not cited for any violations.

Aircraft

Registration
N155DL
Reported as
Boeing 767-300ER
Category
Airplane
Serial number
25269
Airframe hours
39,413
Engine
GE CF6, 60,800 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Registered owner
Delta Air Lines Inc.
Airworthiness certificate
Standard, Transport
Departed
LAX · Los Angeles Int, CA
Destination
BOS · Boston, MA
Flight plan
IFR
Airport
BOS · General Edward Lawrence Logan, runway 33L, 10,081 × 150 ft, asphalt

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
56
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
October 21, 2000
Seat
Left
Flight hours
12,700 total · 880 in this make and model
Role
Co-pilot
Age
43
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1
Last flight review
November 29, 2000
Seat
Rear
Flight hours
9,000 total · 2,906 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 19 knots, gusting 23
Visibility
10 statute miles
Lowest ceiling
None
Temperature
30 °F, dew point 10 °F
Altimeter
29.87 inHg
Observed at
BOS

FAA reports on this event · 1

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