Embraer EMB-120 N120AM
23 January 1987 · Springfield, Missouri, United States · No injuries
Summary
On 23 January 1987 at about 13:18 local time, a Embraer EMB-120 registered N120AM was involved in an incident near Springfield, Missouri, United States. 10 people were on board and nobody was injured. The aircraft was slightly damaged. No probable cause statement is available for this record.
The record
- Date
- at 13:18
- Classification
- Incident
- Location
- Springfield, Missouri, United States
- Nearest airport
- Springfield Regional (SGF)
- Coordinates
- 37.2802, -93.2903
- Aircraft
- Embraer EMB-120
- Registration
- N120AM
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Springfield → Nashville
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Dawn
- NTSB number
- MKC87IA043
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 10 | 0 | 0 | 0 | 10 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
THE PIC OF THIS AIR MIDWEST FLT 4408 SAID THAT, WHILE ON INITIAL CLIMB, POWER (NP) ON THE LEFT ENGINE DECAYED TO 60% AND WOULD NOT RECOVER. THE ENGINE WAS FEATHERED BY CONDITION LEVER BUT THE TORQUE ROSE TO 140% WHILE RETURNING FOR A LANDING, ACCORDING TO THE PIC. THE AIRCRAFT LANDED SAFELY. A POST-INCIDENT INVESTIGATION DISCLOSED THAT AN OIL LEAK HAD BEEN TRACED, THE DAY PRIOR TO THE INCIDENT, TO A FRACTURED PROPELLER CONTROL UNIT SOLENOID. THAT PART WAS REMOVED AND REPLACED AS A PRECAUTIONARY MEASURE. THE PLASTIC BLADE RETAINING RINGS INSIDE THE PROPELLER ASSY WERE DAMAGED DUE TO THE ENGINE OVERTORQUE AND SUBSEQUENT SHUTDOWN. A TEARDOWN OF THE PROPELLER CONTROL UNIT (PCU) SHOWED THAT THE BETA TUBE HAD NOT FAILED NOR WAS IT FREEWHEELING INSIDE THE PCU. A SPECTROGRAPHIC ANALYSIS OF OIL SAMPLES, DRAWN FROM FOUR SEPARATE SECTIONS OF THE ENGINE, TESTED SATIFACTORILY. AS SUCH, NO REASON COULD BE FOUND FOR THE DROP IN ENGINE POWER (NP) AND SUBSEQUENT OVERTORQUE.
Quoted verbatim from the NTSB record.
Other Embraer EMB-120 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 14 Jul 1987 | Embraer EMB-120 | Atlanta, Georgia, United States | Atlantic Southeast Airlines | No injuries | - |
| 10 Dec 1987 | Embraer EMB 120 | Columbus, Mississippi, United States | - | No injuries | - |
| 9 Apr 1990 | Embraer EMB-120 | Gadsden, Alabama, United States | Atlantic Southeast | Fatal | 2 |
| 25 Aug 1990 | Embraer EMB-120 | College Station, Texas, United States | - | No injuries | - |
| 21 Jul 1992 | Embraer EMB-120 RT | Denver, Colorado, United States | Mesa Airlines, Inc. | No injuries | - |
| 29 Apr 1993 | Embraer EMB-120 RT | Pine Bluff, Arkansas, United States | Continental Express | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Mar 1987 | Cessna 182J | Archie, Missouri, United States | - | No injuries | - |
| 24 Mar 1987 | Beechcraft BE-58 | Houston, Missouri, United States | Paramount Corp. | No injuries | - |
| 28 Mar 1987 | Cessna 150F | Fremont, Missouri, United States | Ruth Nickie | No injuries | - |
| 1 Apr 1987 | Cessna 140 | Creve Coeur, Missouri, United States | George Abner Benson | No injuries | - |
| 7 Apr 1987 | Fairchild SA-227 | Springfield, Missouri, United States | Resort Air, Inc. | No injuries | - |
| 9 Apr 1987 | Cessna 152 | Kirksville, Missouri, United States | - | No injuries | - |