British ATP N854AW
26 February 1994 · Mosinee, Wisconsin, United States · Minor injuries
Summary
On 26 February 1994 at about 04:23 local time, a British ATP registered N854AW, operated by United Feeder Service, was involved in an incident near Mosinee, Wisconsin, United States. 18 people were on board and 2 had minor injuries. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 04:23
- Classification
- Incident
- Location
- Mosinee, Wisconsin, United States
- Coordinates
- 44.7797, -89.6799
- Aircraft
- British ATP
- Registration
- N854AW
- Category
- Airplane
- Engines
- 2
- Operator
- United Feeder Service
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Chicago → Unknown
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Night/Bright
- NTSB number
- CHI94IA095
People
2 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 18 | 0 | 0 | 2 | 16 |
Probable cause
the inadequate design of the PBSI electrical switch(es), and the operator's failure to expeditiously implement corrective Service Bulletins.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE FLIGHT CREW SAW SMOKE IN THE COCKPIT WHILE DESCENDING FROM CRUISE AND DECLARED AN EMERGENCY. THE COPILOT DISCOVERED THE SOURCE OF THE SMOKE TO BE A RED-HOT PUSH BUTTON SELECTOR INDICATOR (PBSI) SWITCH FOR THE FLIGHT IDLE BAULK TEST. HE DISCHARGED A PORTABLE FIRE EXTINGUISHER ON THE SWITCH AND THE SMOKE STOPPED. THE SWITCH WAS SUBSEQUENTLY REMOVED BY MAINTENANCE PERSONNEL AND FOUND TO SCORCHED AND MELTED. ADJACENT WIRING WAS ALSO HEAT DAMAGED. THE MANUFACTURER HAD PREVIOUSLY ISSUED TWO SERVICE BULLETINS WHICH DEALT WITH PBSI SWITCH MALFUNCTIONS ASSOCIATED WITH WATER INGRESS TO THE COCKPIT IN THE VICINITY OF THE SWITCHES. THE OPERATOR HAD NOT COMPLIED WITH THE VOLUNTARY SERVICE BULLETINS AT THE TIME OF THE INCIDENT.
Quoted verbatim from the NTSB record.
Other British ATP accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 19 Jan 1994 | British ATP | South Bend, Indiana, United States | United Feeder Services | No injuries | - |
| 7 May 1993 | British ATP | Green Bay, Wisconsin, United States | Air Wisconsin | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 1 Jul 1994 | Cessna 172B | Shiocton, Wisconsin, United States | - | Serious injuries | - |
| 6 Jul 1994 | Beechcraft 58 | Land O'lakes, Wisconsin, United States | North Wind Aviation Corp. | Minor injuries | - |
| 20 Jul 1994 | Piper PA-18-135 | Butte Des Mort, Wisconsin, United States | Pro-Aire Training | No injuries | - |
| 5 Mar 1994 | Corby Starlet | Watertown, Wisconsin, United States | - | No injuries | - |
| 11 Mar 1994 | Lancair 360 | Waukesha, Wisconsin, United States | Scheid, Carl C. | No injuries | - |
| 21 Jul 1994 | Cessna 172 | Marinette, Wisconsin, United States | - | Minor injuries | - |