CHI87IA163

NTSB incident investigation · Boeing 757-251 · Detroit, MI · June 18, 1987

Incident · No injuriesIncident investigationFinal report
Date
June 18, 1987, 08:56 local (12:56 UTC)
Place
Detroit, MI
Injuries
123 uninjured
Damage
Minor damage
Phase of flight
Takeoff
Aircraft
N515USBoeing 757-251
Weather
Visual (VMC) · Day
Status
Completed · report July 10, 1989
Report
Approved by Office Director
FAA report
19870618054339I
Case key
13669

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

On this page

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.

On ground/water encounter with terrain/waterTakeoff
Rotation - excessivePilot in commandCause
Aircraft handling - abruptPilot in commandCause

Analysis

A northwest airlines Boeing 757, operating as flight 336, scraped the tail cone area of the fuselage on the runway when the pilot failed to maintain sufficient ground clearance during rotation and takeoff from Detroit, Michigan. The Boeing 757 flight operation manual states that 'normally...approximately 3 degrees per second is a good rotation rate. ' on page three of the flight data recorder data, under pitch, it indicates a pitch change of 5.997 degrees in one second, and 4.922 degrees in the next second. The flight operation manual also states that 'rotating at too fast a rate for existing conditions and/or an early rotation can result in a tail strike.'

Aircraft

Registration
N515US
Reported as
Boeing 757-251
Category
Airplane
Serial number
23203
Engine
P&W JT9D-7, 40,550 horsepower, turbo fan
Damage
Minor damage
Flight
Part 121
Registered owner
Northwest Airlines, Inc.
Airworthiness certificate
Standard, Normal; Standard, Transport
Departed
DTW · Detroit, MI
Destination
BOS · Boston, MA
Flight plan
IFR
Airport
DTW · Detroit Metro, runway 21, 10,500 × 200 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
46
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
11,865 total · 160 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
25,000 ft broken
Temperature
68 °F, dew point 55 °F
Altimeter
30.00 inHg
Observed at
DTW

FAA reports on this event · 1

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