SEA86LA031

NTSB accident investigation · Cessna 402B · Spokane, WA · December 27, 1985

Accident · No injuriesLimited investigationFinal report
Date
December 27, 1985, 02:49 local (10:49 UTC)
Place
Spokane, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N4624NCessna 402B
Weather
Instrument (IMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19851227074959A
Case key
40340

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - nonmechanicalTakeoff - initial climb
Induction air control/system - blocked(partial)Cause
Powerplant controls - improper use ofPilot in commandCause
Weather condition - icing conditionsCause
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Object - fenceFactor
Weather condition - dark nightFactor
In flight collision with terrain/waterLanding

Analysis

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.

Aircraft

Registration
N4624N
Reported as
Cessna 402B
Category
Airplane
Serial number
402B1376
Airframe hours
39,776
Engine
Continental TSIO-520-E, 300 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Part 135
Operator
Regional Express Co.
Registered owner
J.M. Bevans, III/G.B. Meisner
Airworthiness certificate
Standard, Normal
Departed
GEG · Spokane, WA
Destination
LWS · Lewiston, ID
Airport
GEG · Spokane Intn'L, runway 21, 9,000 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
59
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
16,370 total · 700 in this make and model · 12,655 as pilot in command · 160 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
180° at 3 knots
Visibility
1 statute miles
Lowest ceiling
200 ft overcast
Temperature
21 °F, dew point 19 °F
Altimeter
30.00 inHg
Observed at
GEG

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.