DCA16CA070

NTSB accident investigation · Mcdonnell Douglas MD 88 · Newark, NJ · January 24, 2016

Accident · No injuriesData collectionFinal report
Date
January 24, 2016, 17:22 local (22:22 UTC)
Place
Newark, NJ
Injuries
153 uninjured
Damage
Substantial damage
Phase of flight
Standing
Aircraft
N908DEMcdonnell Douglas MD 88
Defining event
Standing-engine(s) operating: Ground collision
Weather
Visual (VMC) · Dusk
Status
Completed · report August 24, 2016
Report
Approved by Office Director
NTSB office
Major Investigations Division
Case key
92634

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 ground crew's misjudgment of the distance between the B767 wingtip and the MD-88 tail. Contributing to the accident was the slushy condition of the ramp which limited the maneuvering space available.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Action: incorrect action performancePersonnel issues › Action/decision · Ground crewMcdonnell Douglas MD-88: 2 casesAll aircraft: 1,386 casesProbable cause
Runway/land/takeoff/taxi surface: snow/slush/ice covered surfaceEnvironmental issues › Physical environment · Effect on operationMcdonnell Douglas MD-88: 2 casesAll aircraft: 219 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

On January 24, 2016 at 19:22 eastern standard time, Delta Air Lines flight 1409, a McDonnell Douglas MD-88, N908DE, was struck by a Boeing 767, N178DZ, that was under tow by a Delta Airlines ground crew in the vicinity of gate 42 at Newark Liberty International Airport, Newark, New Jersey (EWR). There were no injuries to the 153 passengers and crew members onboard the MD-88 or to the one person aboard the B767 nor to the four ground crew personnel. There was substantial damage to the horizontal stabilizer and elevator of the MD-88. According to the operator, after landing the MD-88 crew taxied into the alley in the vicinity of gate 36, awaiting gate 41B to clear, and set the parking brake. Airport Customer Service (ACS) representatives were towing the B767 to gate 42 (the ACS personnel were not aboard with the intent for flight), and following a Port Authority vehicle to gate 42. The ACS agents and the MD-88 flight crew reported that the ramp conditions were very slushy and limited space was available. The ACS representative aboard the B767 requested that the MD-88 pull forward, to allow clearance between the two aircraft, and the flight crew complied with the request. The captain stated that he could only move about 15 to 20 feet due to the ramp conditions. Shortly afterward, the flight crew felt the impact and noted that the two aircraft had made contact. The tug driver was not aware of the impact until after arrival at gate 42. The MD-88 was towed to the gate and passengers deplaned via the jetway. The MD-88 received substantial damage to the left elevator, elevator tab, and horizontal stabilizer tip. The left winglet of the B767 received minor damage.

Factual narrative

On January 24, 2016 at 19:22 eastern standard time, Delta Air Lines flight 1409, a McDonnell Douglas MD-88, N908DE, was struck by a Boeing 767, N178DZ, that was under tow by a Delta Airlines ground crew in the vicinity of gate 42 at Newark Liberty International Airport, Newark, New Jersey (EWR). There were no injuries to the 153 passengers and crew members onboard the MD-88 or to the one person aboard the B767 nor to the four ground crew personnel. There was substantial damage to the horizontal stabilizer and elevator of the MD-88. According to the operator, after landing the MD-88 crew taxied into the alley in the vicinity of gate 36, awaiting gate 41B to clear, and set the parking brake. Airport Customer Service (ACS) representatives were towing the B767 to gate 42 (the ACS personnel were not aboard with the intent for flight), and following a Port Authority vehicle to gate 42. The ACS agents and the MD-88 flight crew reported that the ramp conditions were very slushy and limited space was available. The ACS representative aboard the B767 requested that the MD-88 pull forward, to allow clearance between the two aircraft, and the flight crew complied with the request. The captain stated that he could only move about 15 to 20 feet due to the ramp conditions. Shortly afterward, the flight crew felt the impact and noted that the two aircraft had made contact. The tug driver was not aware of the impact until after arrival at gate 42. The MD-88 was towed to the gate and passengers deplaned via the jetway. The MD-88 received substantial damage to the left elevator, elevator tab, and horizontal stabilizer tip. The left winglet of the B767 received minor damage.

Aircraft

Registration
N908DE
Reported as
Mcdonnell Douglas MD 88 (88)
Category
Airplane
Serial number
53417
Built
1992
Airframe hours
58,173
Engines
Pratt & Whitney JT8D-219, turbo fanPratt & Whitney JT8D-219, turbo fan
Damage
Substantial damage
Flight
Part 121
Operator
Delta Air Lines, Inc.
Registered owner
Delta Air Lines, Inc.
Airworthiness certificate
Standard, Transport
Last inspection
January 21, 2016
Departed
DTW · Detroit, MI
Destination
EWR · Newark, NJ
Flight plan
IFR
Airport
EWR · Newark Liberty International A
Equipment
Stall warning system, Angle of attack indicator, Data recorder, Electronic flight bag or handheld device, Electronic primary flight display

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
53
Injuries
None
Certificates
Airline transport, Commercial, Private
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1
Last flight review
October 30, 2015
Seat
Left
Flight hours
15,808 total · 12,182 in this make and model · 5,504 as pilot in command · 148 in the last 90 days · 5 in the last 24 hours
Role
Co-pilot
Age
32
Injuries
None
Certificates
Commercial, Airline transport, Private
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1
Last flight review
November 24, 2015
Seat
Right
Flight hours
143 total · 143 in this make and model · 143 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
300° at 7 knots
Visibility
10 statute miles
Lowest ceiling
14,000 ft broken
Temperature
36 °F, dew point 16 °F
Altimeter
30.00 inHg
Observed at
KEWR

Docket · 8

The files NTSB released with the investigation on August 25, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.7 MB in all.

Other investigations on N908DE · 1

Matched to the same aircraft by N-number and date.