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| Date: | Friday 3 January 1986 |
| Time: | 07:22 LT |
| Type: |  Boeing 737-2H4 Adv. |
| Owner/operator: | Southwest Airlines |
| Registration: | N86SW |
| MSN: | 22827/882 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 12341 hours |
| Engine model: | P&W JT8D-9A |
| Fatalities: | Fatalities: 0 / Occupants: 44 |
| Other fatalities: | 0 |
| Aircraft damage: | Minor |
| Category: | Incident |
| Location: | Dallas-Love Field, TX (DAL/KDAL) -
 United States of America
|
| Phase: | Take off |
| Nature: | Passenger - Scheduled |
| Departure airport: | Dallas-Love Field, TX (DAL/KDAL) |
| AUS | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
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.
Accident investigation:
 |
|
Sources:
NTSB
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Oct-2021 16:49 | harro | Added |
| 01-Jul-2022 08:36 | harro | Updated [Nature, ] |
| 12-May-2025 16:18 | NY | Updated [Embed code, ] |
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