Bombardier CL 600 N600RE

Summary

On 17 October 1994 at about 01:51 local time, a Bombardier CL 600 registered N600RE, operated by Affiliated Health Services Inc, was involved in an incident near Nacogdoches, Texas, United States. 4 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

17 October 1994 at 01:51

Classification

Incident

Location

Nacogdoches, Texas, United States

Coordinates

30.9207, -94.5996

Aircraft

Bombardier CL 600

Registration

N600RE

Category

Airplane

Engines

2

Operator

Affiliated Health Services Inc

Operating rule

Part 91: General Aviation

Purpose of flight

Business

Phase of flight

Not recorded

Route

Tucson → Shreveport

Aircraft damage

Minor

Weather

IMC

Light

Night/Dark

NTSB number

FTW95IA022

Nobody was injured.

THE FLIGHT CREW'S IMPROPER USE OF THE ANTI-ICE SYSTEM, WHICH RESULTED IN ENGINE ICE, SUBSEQUENT ICE INGESTION, AND ENGINE FLAMEOUT. FACTORS RELATED TO THE ACCIDENT WERE: FAILURE OF THE FLIGHT CREW TO FOLLOW THE CHECKLIST PROCEDURES AFTER FLIGHT INTO ADVERSE WEATHER CONDITIONS, AND THE AIRCREW'S LACK OF FAMILIARITY WITH THE AIRCRAFT REGARDING FLIGHT IN ICING C0NDITIONS.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

DURING FLIGHT AT FL370, THE AIRPLANE ENTERED A CLOUD LAYER AND ENCOUNTERED TURBULENCE. A DESCENT WAS MADE TO FL330. AS POWER WAS BEING APPLIED FOR LEVEL OFF AT FL330, THE N1 INDICATION DID NOT RESPOND. AT FL310 THE #1 ENGINE FLAMED OUT. WEATHER INCLUDED ICE CRYSTALS, THUNDERSTORM OUTFLOW, AND TURBULENCE. DURING AN ATTEMPTED CROSS BLEED AIR START, THE #2 ENGINE FLAMED OUT. WITH THE AIR DRIVEN GENERATOR (ADG) DEPLOYED, THE CREW WAS SUCCESSFUL WITH AN APU ASSISTED START. BOTH ENGINES WERE STABILIZED BY 5000 FEET, AND THE FLIGHT LANDED SAFELY. INTERVIEWS AND INFORMATION FROM THE CVR REVEALED THAT THE CREW DID NOT CALL FOR THE EMERGENCY CHECKLIST AND THAT THEY LACKED KNOWLEDGE OF THE AIRPLANE SYSTEMS. AS THE CREW RECOGNIZED THE INITIAL POWER LOSS, THE CAPTAIN ASKED THE FIRST OFFICER IF HE HAD TURNED ON ENGINE ANTI-ICE. HE REPLIED THAT HE HAD NOT. THE CREW HAD NOT ATTENDED A FORMAL TRAINING COURSE FOR THE CL 600. THE CAPTAIN AND COPILOT RECEIVED TYPE RATINGS FROM A DESIGNATED PILOT EXAMINER (DPE) IN MAY AND MARCH 1994, RESPECTIVELY. TESTS OF THE FUEL CONTROL UNITS REVEALED DISCREPANCIES IN THE START AND ACCELERATION SCHEDULES; HOWEVER, NO DISCREPANCIES WERE FOUND THAT WOULD HAVE CONTRIBUTED TO THE FLAMEOUTS.

Quoted verbatim from the NTSB record.