Fokker F-28-4000 N479AU
23 November 1994 · Evansville, Indiana, United States · No injuries
Summary
On 23 November 1994 at about 18:34 local time, a Fokker F-28-4000 registered N479AU was involved in an incident near Evansville, Indiana, United States. 53 people were on board and nobody was injured. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 18:34
- Classification
- Incident
- Location
- Evansville, Indiana, United States
- Nearest airport
- Evansville (EVV)
- Coordinates
- Not recorded
- Aircraft
- Fokker F-28-4000
- Registration
- N479AU
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Pittsburgh → Unknown
- Aircraft damage
- Not recorded
- Weather
- VMC
- Light
- Day
- NTSB number
- CHI95IA045
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 53 | 0 | 0 | 0 | 53 |
Probable cause
the failure of company maintenance personnel to adequately service (fill) the horizontal stabilizer drive actuator with hydraulic fluid.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE FLIGHT CREW REPORTED THAT WHILE DESCENDING FROM CRUISE IN PREPARATION FOR LANDING, THEY NOTICED THAT THE HORIZONTAL STABILIZER WAS NOT RESPONDING TO TRIM INPUTS. THE AUTOPILOT WAS DISENGAGED, AND BOTH NORMAL AND ALTERNATE MODES OF STABILIZER TRIM WAS ATTEMPTED WITHOUT SUCCESS. THE CREW FOLLOWED THE JAMMED STABILIZER APPROACH CHECKLIST, AND WAS ABLE TO EFFECT PITCH CHANGES BY BOTH CREW MEMBERS EXERTING FORCE ON THEIR CONTROL YOKES. POSTINCIDENT INSPECTION OF THE STABILIZER DRIVE ACTUATOR DISCOVERED NO HYDRAULIC LEAKS. THE ACTUATOR'S GEAR BOX WAS DRAINED, AND FOUND TO CONTAIN APPROXIMATELY ONE OUNCE OF MURKY, SLUDGE-LIKE HYDRAULIC FLUID. THE GEAR BOX IS REQUIRED TO BE FILLED WITH SEVEN OUNCES OF HYDRAULIC FLUID. THE ACTUATORS ARE SHIPPED FROM THE MANUFACTURER ESSENTIALLY DEVOID OF HYDRAULIC FLUID, WITH INSTRUCTIONS THAT THEY MUST BE FILLED PRIOR TO SERVICE.
Quoted verbatim from the NTSB record.
Other Fokker F-28 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 26 Jan 1993 | Fokker F-28 MK 1000 | Detroit, Michigan, United States | Usair | No injuries | - |
| 13 May 1998 | Fokker F-28 MK100 | Ft. Wayne, Indiana, United States | - | Serious injuries | - |
| 19 Aug 1989 | Fokker F-28 MK4000 | Vero Beach, Florida, United States | Usair | Serious injuries | - |
| 3 Oct 1987 | Fokker F-28-MK-1000 | Baltimore, Maryland, United States | - | No injuries | - |
| 6 Mar 2002 | Fokker F-28 MK-100 | Dallas, Texas, United States | - | No injuries | - |
| 24 Oct 1985 | Fokker F-28 | Flushing, New York, United States | Empire Airlines, Inc. | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 22 Jul 1994 | Grumman FM-2 | Woodburn, Indiana, United States | Kalamazoo Aviation History | No injuries | - |
| 26 Sep 1994 | Simcox SPORT TRAINER | Laporte, Indiana, United States | - | Minor injuries | - |
| 31 Jul 1994 | Piper PA-28-200 | Fort Wayne, Indiana, United States | Robert C. Randol | Minor injuries | - |
| 29 Jul 1994 | Lattimore-Dwyer BREEZY | Goshen, Indiana, United States | - | Minor injuries | - |
| 9 Feb 1994 | Cessna 320F | Goshen, Indiana, United States | - | Fatal | 1 |
| 29 Jul 1994 | Miller KITFOX | Spencer, Indiana, United States | Miller, Richard B. | No injuries | - |