ASN Wikibase Occurrence # 269209
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Date: | 03-JAN-1986 |
Time: | 07:22 LT |
Type: | Boeing 737-2H4 Adv. |
Owner/operator: | Southwest Airlines |
Registration: | N86SW |
MSN: | 22827/882 |
Fatalities: | Fatalities: 0 / Occupants: 44 |
Other fatalities: | 0 |
Aircraft damage: | Minor |
Category: | Incident |
Location: | Dallas-Love Field, TX -
United States of America
|
Phase: | Take off |
Nature: | Passenger - Scheduled |
Departure airport: | DAL |
Destination airport: | AUS |
Investigating agency: | NTSB |
Confidence Rating: | Information verified through data from accident investigation authorities |
Narrative:The incident occurred when the no. 2 engine experienced an aft engine mount cone bolt failure and the subsequent failure of the secondary support link (stainless steel cable). The failure of both aft engine support assemblies during the takeoff roll allowed the aft section of the engine to hang down to within 4' of the ground. As a result, the no.2 thrust reverser actuator assembly drug the runway on rotation. In addition, one leading edge flap and the forward engine fairing were slightly damaged. The aircraft subsequently returned to the airport and landed without further incident. Metallurgical examination of the cone bolt revealed that it failed as a result of fatigue, most probably due to improper installation of the bolt, specifically, that it was under torqued when the operator re-installed the engine.
The safety cable failed as a result of overstress, probably induced when the aircraft encountered a rough stretch of runway during the takeoff roll.
Sources:
NTSB
Accident investigation:
|
| |
Investigating agency: | NTSB |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Revision history:
Date/time | Contributor | Updates |
27-Oct-2021 16:49 |
harro |
Added |
01-Jul-2022 08:36 |
harro |
Updated [Nature] |
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