McDonnell Douglas MD-82 N3507A
23 November 1996 · Dfw Airport, Texas, United States · Minor injuries
Summary
On 23 November 1996 at about 22:22 local time, a McDonnell Douglas MD-82 registered N3507A, operated by American Airlines, was involved in an incident near Dfw Airport, Texas, United States. 119 people were on board and 3 had minor injuries. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 22:22
- Classification
- Incident
- Location
- Dfw Airport, Texas, United States
- Nearest airport
- Dallas-Fort Worth Intl (DFW)
- Coordinates
- Not recorded
- Aircraft
- McDonnell Douglas MD-82
- Registration
- N3507A
- Category
- Airplane
- Engines
- 2
- Operator
- American Airlines
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Unknown → Acapulco
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Day
- NTSB number
- FTW97IA045
People
3 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 119 | 0 | 0 | 3 | 116 |
Probable cause
The failure of the low pressure turbine shaft. A factor was the coke build up on the low pressure turbine shaft.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The airplane was departing when a thump was felt with a slight left nose pull, and the pilots aborted the takeoff. The pilots taxied clear of the runway and came to a stop. Several flight crews on the ground reported on the tower frequency that the incident airplane's left engine was on fire. The captain initiated evacuation of the airplane. The Airport Rescue and Fire Fighting (ARFF) personnel reported that the engine fire was confined to the tailpipe area. Turbine blades had separated from the number 4 turbine disk, penetrated the engine case, and subsequently damaged the engine pylon and empennage area. The teardown examination of the engine revealed that the Low Pressure Turbine (LPT) shaft was deformed and fractured into two pieces. Heavy coke deposits were identified on both the outer diameter of the LPT shaft and the inner diameter of the center tube. The two pieces of the LPT shaft were twisted and subjected to 'considerable' permanent deformation. The amount of plastic deformation was indicative of exposure to high temperatures. Additionally, the High Pressure Turbine shaft was found with a (one of three) 4 1/2 bearing stack retention pin missing.
Quoted verbatim from the NTSB record.
Other McDonnell Douglas MD-82 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 3 Jun 1996 | McDonnell Douglas MD-82 | Childress, Texas, United States | - | Minor injuries | - |
| 17 Feb 1997 | McDonnell Douglas MD-82 | Newark, New Jersey, United States | - | No injuries | - |
| 27 Apr 1997 | McDonnell Douglas MD-82 | Jinan, China | China Eastern Airlines | Unknown | - |
| 20 Apr 1995 | McDonnell Douglas MD-82 | Utopia, Texas, United States | Continental Airlines, Inc. | Serious injuries | - |
| 28 Apr 1997 | McDonnell Douglas MD-82 | Tucson, Arizona, United States | - | No injuries | - |
| 2 Mar 1994 | McDonnell Douglas MD-82 | Flushing, New York, United States | Continental Airlines | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Sep 1996 | Cessna T210L | Lonestar, Texas, United States | - | Minor injuries | - |
| 8 Jan 1996 | Piper PA-28-160 | Decatur, Texas, United States | - | Serious injuries | - |
| 9 Jan 1996 | Piper PA-38-112 | Port Mansfield, Texas, United States | Flight Training Systems, Inc. | No injuries | - |
| 14 Jan 1996 | Beechcraft 35-A33 | Houston, Texas, United States | Ray's Flying Service | No injuries | - |
| 28 Apr 1996 | Cessna T210N | Beaumont, Texas, United States | - | No injuries | - |
| 12 Jan 1996 | Schweizer 269C | San Ygnacio, Texas, United States | - | No injuries | - |