Bombardier CL600-2A12 N125PS
6 December 1987 · Twentynine Plms, California, United States · No injuries
Summary
On 6 December 1987 at about 21:23 local time, a Bombardier CL600-2A12 registered N125PS was involved in an incident near Twentynine Plms, California, United States. 2 people were on board and nobody was injured. No probable cause statement is available for this record.
The record
- Date
- at 21:23
- Classification
- Incident
- Location
- Twentynine Plms, California, United States
- Coordinates
- 34.2396, -115.8601
- Aircraft
- Bombardier CL600-2A12
- Registration
- N125PS
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 91F: Special Flt Ops.
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Santa Ana → Las Vegas
- Aircraft damage
- Not recorded
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA88IA028
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
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 WATER FILTER HOUSING LOWER SEAL WAS MIS-INSTALLED WHICH ALLOWED WATER TO SEEP OUT AND RUN DOWN THE HOUSING CASE. OVER TIME THE WATER DROPPED ONTO A LAVATORY DRAIN LINE, FOLLOWED THE LINE TO A LOW POINT & COLLECTED ON THE STAB AUG COMPUTER BOX. THE FLUID ACCUMULATION RESULTED IN CORROSION ON ONE OF THE CIRCUIT BOARDS WITHIN THE COMPUTER BOX CAUSING A POWER IMBALANCE WITHIN THE YAW DAMPER SYSTEM AND A SUBSEQUENT UNCOMMANDED RUDDER SIGNAL. DRG THE CLIMB TO CRUISE TRANSITION A MACH TRIM FAILURE OCCURRED WHICH WOULD HAVE NECESSITATED THE USE OF THE AUTOPILOT FOR SPEEDS IN EXCESS OF 0.7 MACH. OPERATION OF THE AUTOPILOT, HOWEVER, RESULTED IN OPERATION OF THE YAW DAMPER SYSTEM WHICH HAD BEEN DETERMINED TO HAVE BEEN PRODUCING UNCOMMANDED RUDDER INPUTS. AS THE ACFT WAS LEVELLED AT FL330 AND THE AIRSPD WAS ALLOWED TO EXCEED MACH 0.7 THE COPLT ACTIVATED THE AUTOPLT WHICH POWERED THE MALFUNCTIONING DAMPER SYSTEM AND A DUTCH ROLL MANEUVER ENSUED. PIC DISCONNECTED THE AUTOPLT, EXECUTED A DESCENT AND RECOVERY.
Quoted verbatim from the NTSB record.
Other Bombardier CL600 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 Jul 1993 | Bombardier CL600-2B19 | Danville, Illinois, United States | Comair | No injuries | - |
| 3 Apr 1980 | Bombardier CL600 | Calif. City, California, United States | Canadair Ltd. | Fatal | 1 |
| 8 Sep 1994 | Bombardier CL600 | Burbank, California, United States | Skywest Airlines | No injuries | - |
| 10 Mar 1998 | Bombardier CL600-2B19 | Covington, Kentucky, United States | - | Minor injuries | - |
| 10 Oct 2000 | Bombardier CL600-2B16 | Wichita, Kansas, United States | - | Fatal | 2 |
| 8 May 2002 | Bombardier CL600-2B19 | Covington, Kentucky, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 1 Nov 1987 | Durbin MONNETT MONI | Ramona, California, United States | Lipner, Robert M. | Serious injuries | - |
| 24 Dec 1987 | Bede BD-5 | Chula Vista, California, United States | Teufel, Armin U. | Fatal | 1 |
| 25 Oct 1987 | Stits ELKINS 85 | Camarillo, California, United States | - | Fatal | 1 |
| 21 Nov 1987 | Isgrigg ELITE | Tehachapi, California, United States | Isgrigg, John | Minor injuries | - |
| 27 Dec 1987 | Rolladen-Schneider LS-3 | Santa Ynez, California, United States | - | Serious injuries | - |
| 1 Jan 1987 | Cessna 152 | San Dimas, California, United States | King Aviation | Minor injuries | - |