Cessna 402B N4624N

Summary

On 27 December 1985 at about 10:49 local time, a Cessna 402B registered N4624N, operated by Regional Express Co., was involved in an accident near Spokane, Washington, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

27 December 1985 at 10:49

Classification

Accident

Location

Spokane, Washington, United States

Nearest airport

Spokane Intn'l (GEG)

Coordinates

Not recorded

Aircraft

Cessna 402B

Registration

N4624N

Category

Airplane

Engines

2

Operator

Regional Express Co.

Operating rule

Part 135: Air Taxi & Commuter

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Spokane → Lewiston

Aircraft damage

Substantial

Weather

IMC

Light

Night/Dark

NTSB number

SEA86LA031

Nobody was injured.

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 PLT REPORTED ENCOUNTERING ICING CONDITIONS DURING HIS APCH TO SPOKANE. UPON ARRIVAL, THE ACFT REMAINED AT SPOKANE FOR 30-40 MINUTES DURING WHICH FREEZING DRIZZLE AND BELOW FREEZING TEMPS EXISTED PRIOR TO AND DURING THE DEPARTURE. THE PLT DID NOT UTILIZE THE MANUALLY OPERATED ALTERNATE AIR SYSTEM ABOARD THE ACFT AND AS A RESULT, COLD, MOIST AIR WAS ENTRAINED INTO THE SUBFREEZING FILTER CHAMBERS. THE GRADUAL BLOCKAGE OF AIR FROM ICE IN THE FILTERS RESULTED IN A LOSS OF PWR ON BOTH ENGS. WITH SUFFICIENT PWR AVAILABLE THE PLT CHOSE TO EXECUTE AN INTENTIONAL FORCED LANDING. THE ACFT STRUCK AN ARPT PERIMETER FENCE DURING THE LANDING AND GROUND SLIDE.

Quoted verbatim from the NTSB record.