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Aviation safety reports, made easier to study

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April 19, 1982 · Boeing 727-200 · N32717

Austin, TX

Overview

Report Status
Preliminary report
Event Type
Accident
Date
April 19, 1982
Injury Outcomes
No injuries (68 uninjured)
Location
Austin, TX
Aircraft
Boeing 727-200
Tail Number
N32717
Operator
Continental Airlines
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW82DA139

THE LEFT MAIN GEAR COLLAPSED & PARTIALLY SEPARATED FROM THE ACFT STRUCTURE. EXAMINATION OF THE GEAR ASSEMBLY REVEALED A FAILED DRAG STRUT ASSEMBLY #65-57903-11. THERE WAS EVIDENCE OF A PRE-EXISTING CRACK PRIOR TO THE STRUT SEPARATION. THE STRESS CORROSION CRACKING PROBABLY INITIATED FROM PREVIOUS DAMAGE TO THE OUTER SURFACE OF THE STRUT CYLINDER RESULTING FROM A TIRE BLOWOUT INCIDENT WHICH OCCURRED ON 3/10/82. EITHER A SMALL CRACK OR GROUP OF CRACKS INITIATED IN THE STRUT AT THE TIME OF THE PRIOR DAMAGE, OR THE DAMAGE WAS SEVERE ENOUGH TO DISRUPT THE INTEGRITY OF THE SURFACE FINISH & PRODUCE A NOTCH AND/OR UNFAVORABLE RESIDUAL STRESS WHICH MADE THE STRUT SUSCEPTABLE TO STRESS CORROSION CRACKING IN THIS AREA.

Full Narrative

THE LEFT MAIN GEAR COLLAPSED & PARTIALLY SEPARATED FROM THE ACFT STRUCTURE. EXAMINATION OF THE GEAR ASSEMBLY REVEALED A FAILED DRAG STRUT ASSEMBLY #65-57903-11. THERE WAS EVIDENCE OF A PRE-EXISTING CRACK PRIOR TO THE STRUT SEPARATION. THE STRESS CORROSION CRACKING PROBABLY INITIATED FROM PREVIOUS DAMAGE TO THE OUTER SURFACE OF THE STRUT CYLINDER RESULTING FROM A TIRE BLOWOUT INCIDENT WHICH OCCURRED ON 3/10/82. EITHER A SMALL CRACK OR GROUP OF CRACKS INITIATED IN THE STRUT AT THE TIME OF THE PRIOR DAMAGE, OR THE DAMAGE WAS SEVERE ENOUGH TO DISRUPT THE INTEGRITY OF THE SURFACE FINISH & PRODUCE A NOTCH AND/OR UNFAVORABLE RESIDUAL STRESS WHICH MADE THE STRUT SUSCEPTABLE TO STRESS CORROSION CRACKING IN THIS AREA.

Flight

Event TypeAccident
Event Time21:24 CST
Nearest AirportAustin Muni (0nm N)
Runway31
Runway Length7269 ft
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBoeing 727-200
Tail NumberN32717
Aircraft CategoryAir
DamageSubstantial
OperatorContinental Airlines
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsP&W · JT8D-9A · Turbofan
Seats98

People & Injuries

Injury SummaryNo injuries (68 uninjured)
Fatal0
Serious0
Minor0
Uninjured68
Total68
Crew 1Age 43 · First Class

Conditions

ConditionsVMC
LightDark Night
WindCalm
Visibility6 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0

Appendix: Source Data