DEN89FA123

NTSB accident investigation · Mcdonnell Douglas MD-80 · Denver, CO · May 29, 1989

Accident · Minor injuriesField investigationFinal report
Date
May 28, 1989, 20:03 local (May 29, 1989, 02:03 UTC)
Place
Denver, CO
Injuries
7 minor, 38 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N806NYMcdonnell Douglas MD-80
Weather
Visual (VMC) · Day
Status
Completed · report September 9, 1992
Report
Approved by Office Director
FAA report
19890528015029A
Case key
17588

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

A right main landing gear vibration of unknown origin, which resulted in a failure of the right main landing gear torque link and side brace.

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.

Main gear collapsedLanding - roll
Landing gear,main gear - vibrationCause
Landing gear,gear locking mechanism - failure,totalCause
Landing gear,tire - failure,total

Analysis

Following touchdown from a normal landing, and during the initial portion of the landing roll, a right main landing gear vibration of increasing amplitude occurred. The vibration continued until the right main gear failed approximately 40 feet before the aircraft came to a stop. Examination revealed a failure of the torque link, side brace, and shimmy dampener. The right main tires failed due to foreign object damage and skidding. The left main tires failed due to overheat. An emergency evacuation was conducted using the tail cone exit, which was deployed manually. There was no fire.

Aircraft

Registration
N806NY
Reported as
Mcdonnell Douglas MD-80
Category
Airplane
Serial number
49260
Engine
P&W JT8D, 20,800 lbs thrust, turbo fan
Damage
Substantial damage
Flight
Part 121
Operator
Continental Airlines
Departed
EWR · Newark, NJ
Flight plan
IFR
Airport
DEN · Stapleton Int'L, runway 26R, 7,926 × 150 ft, concrete

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
53
Certificates
Flight engineer, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Toxicology
Performed
Flight hours
15,500 total · 1,325 in this make and model · 5,500 as pilot in command · 240 in the last 90 days · 80 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 10 knots
Visibility
70 statute miles
Lowest ceiling
12,000 ft broken
Temperature
-0 °F, dew point -0 °F
Observed at
DEN, 1 nm away

FAA reports on this event · 1

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