McDonnell Douglas DC-9-82 N72822
27 April 1993 · Denver, Colorado, United States · Minor injuries
Summary
On 27 April 1993 at about 23:28 local time, a McDonnell Douglas DC-9-82 registered N72822 was involved in an accident near Denver, Colorado, United States. 121 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 23:28
- Classification
- Accident
- Location
- Denver, Colorado, United States
- Nearest airport
- Stapleton International (DEN)
- Coordinates
- 39.7609, -104.9201
- Aircraft
- McDonnell Douglas DC-9-82
- Registration
- N72822
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- San Francisco → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- DEN93FA049
People
2 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 121 | 0 | 0 | 2 | 119 |
Probable cause
A VIBRATION IN THE RIGHT MAIN LANDING GEAR, FOR UNDETERMINED REASONS, WHICH RESULTED IN COLLAPSE OF THE RIGHT MAIN GEAR. A FACTOR WAS FAILURE OF THE PILOT IN COMMAND TO ENSURE DEPLOYMENT OF THE GROUND SPOILERS.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
FOLLOWING TOUCHDOWN A LANDING GEAR VIBRATION OCCURRED WHICH LED TO A COLLAPSE OF THE RIGHT MAIN LANDING GEAR AT 117 KNOTS. THE RIGHT WING CONTACTED THE RUNWAY AND THE AIRPLANE SKIDDED TO A STOP ON THE RUNWAY AS IT ENTERED THE OVERRUN. DURING THE ENSUING EMERGENCY EVACUATION TWO PASSENGERS SUSTAINED MINOR INJURIES. EXAMINATION OF APPLICABLE COMPONENTS DID NOT PROVIDE A SPECIFIC CAUSE FOR THE VIBRATION THAT LED TO THE COLLAPSE. THREADS ON THE RIGHT GEAR APEX BOLT FAILED RESULTING IN THE GEAR'S 90 DEGREE ROTATION AND THE SUBSEQUENT OVERLOAD COLLAPSE. THE GROUND SPOILERS DID NOT ACTIVATE AND THE CREW STATED THAT THEY HAD ARMED AUTO SPOILERS. THE MANUFACTURER REPORTED THAT THERE HAVE BEEN A TOTAL OF THREE SIMILAR NON-FLIGHT TEST OCCURRENCES. IN ALL THREE EVENTS THE GROUND SPOILERS DID NOT EXTEND.
Quoted verbatim from the NTSB record.
Other McDonnell Douglas DC-9 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Mar 1993 | McDonnell Douglas DC-9-31 | Saint Louis, Missouri, United States | Trans World Airlines, Inc. | No injuries | - |
| 18 Jun 1993 | McDonnell Douglas DC-9-82 | Savannah, Georgia, United States | American Airlines, Inc. | No injuries | - |
| 2 Sep 1993 | McDonnell Douglas DC-9-82 | St. Louis, Missouri, United States | TWA, Inc. | No injuries | - |
| 26 Apr 1993 | McDonnell Douglas DC-9-82 | Denver, Colorado, United States | Continental Airlines | No injuries | - |
| 13 Oct 1992 | McDonnell Douglas DC-9-82 | Denver, Colorado, United States | Continental Airlines, Inc. | No injuries | - |
| 21 Oct 1992 | McDonnell Douglas DC-9-32 | Houston, Texas, United States | Aerovia de Mexico | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 Oct 1993 | Cessna 172F | Co. Springs, Colorado, United States | - | No injuries | - |
| 22 Oct 1993 | Beechcraft A36TC | Pueblo, Colorado, United States | - | Minor injuries | - |
| 3 Nov 1993 | Bellanca BL17-31ATC | Pagosa Springs, Colorado, United States | - | No injuries | - |
| 22 Oct 1993 | Cessna 210 | Monte Vista, Colorado, United States | Anderson, Robert W. | No injuries | - |
| 25 Nov 1993 | Cessna R172K | Mancos, Colorado, United States | - | Minor injuries | - |
| 30 Nov 1993 | Cessna A185F | Maybell, Colorado, United States | - | No injuries | - |