Fairchild SA-227AC N191AF
29 October 1994 · Oakland, California, United States · No injuries
Summary
On 29 October 1994 at about 14:45 local time, a Fairchild SA-227AC registered N191AF was involved in an incident near Oakland, California, United States. One person was 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 14:45
- Classification
- Incident
- Location
- Oakland, California, United States
- Nearest airport
- Oakland International (OAK)
- Coordinates
- Not recorded
- Aircraft
- Fairchild SA-227AC
- Registration
- N191AF
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Unknown → Reno
- Aircraft damage
- Not recorded
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX95IA027
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
the company maintenance personnel's improper installation of the aileron cable.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT EXPERIENCED A LOSS OF AILERON CONTROL SHORTLY AFTER TAKEOFF. THE PILOT RETURNED TO THE AIRPORT AND LANDED WITHOUT FURTHER INCIDENT. EXAMINATION OF THE AIRPLANE REVEALED THE CABLE BROKE NEAR ITS 90-DEGREE ATTACH PULLEYS. THE SAFETY BOARD MATERIALS LABORATORY CONDUCTED A METALLURGICAL EXAMINATION OF THE CABLE'S FRACTURED SURFACES. THE EXAMINATION REVEALED THE CABLE SEPARATED DUE TO HIGH-STRESS/LOW-CYCLE FATIGUE CRACKING. MOST WIRE ENDS IN THE VICINITY OF THE SEPARATION WERE SEVERELY BENT. SUCH DAMAGE WOULD MOST LIKELY BE PRODUCED BY A KINK IN THE CABLE. A CABLE KINK CREATES VERY HIGH TENSILE STRESSES ALONG THE OUTSIDE OF THE KINK AND WOULD GENERATE PREMATURE HIGH-STRESS FATIGUE CRACKING. THE 15 HOURS OF TIME SINCE INSTALLATION IS CONSISTENT WITH SOME SORT OF SEVERE CONDITION SUCH AS A KINK. THE MECHANIC MOST LIKELY INSTALLED THE CABLE WITH ONE END TWISTED COMPARED WITH THE OTHER END.
Quoted verbatim from the NTSB record.
Other Fairchild SA-227AC accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 5 Apr 1994 | Fairchild SA-227AC | Ontario, California, United States | Skywest Airlines Inc. | Minor injuries | - |
| 18 Apr 1992 | Fairchild SA-227AC | Lexington, Kentucky, United States | Mesaba Airlines | Minor injuries | - |
| 25 Jun 1992 | Fairchild SA-227AC | Boston, Massachusetts, United States | Northeast Express Airlines | No injuries | - |
| 7 Oct 1991 | Fairchild SA-227AC | Augusta, Maine, United States | Northeast Express | Minor injuries | - |
| 20 Jan 1988 | Fairchild SA-227AC | Bayfield, Colorado, United States | Trans Colorado Airlines | Fatal | 9 |
| 9 Mar 1985 | Fairchild SA-227AC | Hailey, Idaho, United States | Horizon Airlines, Inc. | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 17 Sep 1994 | Piper PA-28R-201 | Fort Bragg, California, United States | Sundance Flying Club | Serious injuries | - |
| 12 May 1994 | Schweizer G-164B | Yuba City, California, United States | Sutter Butte Dusters, Inc. | No injuries | - |
| 3 Sep 1994 | Cessna T210L | Kettleman City, California, United States | Willie Alves Rodrigues | No injuries | - |
| 13 May 1994 | Maule M-5-235C | Columbia, California, United States | White, James L. | No injuries | - |
| 19 May 1994 | Cessna 150L | Rio Linda, California, United States | Hinckley, Thomas, F. | Serious injuries | - |
| 23 Sep 1994 | Robinson R-22 | Chico, California, United States | Sierra Aviation | No injuries | - |