SEA89LA031

NTSB accident investigation · Beech 99A · Spokane, WA · December 24, 1988

Accident · No injuriesLimited investigationFinal report
Date
December 24, 1988, 06:20 local (14:20 UTC)
Place
Spokane, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4954WBeech 99A
Weather
Visual (VMC) · Dawn
Status
Completed · report September 25, 1989
Report
Approved by Office Director
FAA report
19881224056119A
Case key
40967

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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Analysis

Acft was left overnight in heavy precip. Plt failed to ensure fuselage drains were clear and water accumulation drained before departing into below freezing flight temps. On lndg at dest, plt unable to achieve flare, resulting in hard lndg. Investigation revealed elevator cables and pulleys frozen in solid block of ice at fuselage low point.

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.

Airframe/component/system failure/malfunctionLanding - flare/touchdown
Flt control syst,elevator control - frozenCause
Aircraft preflight - inadequatePilot in commandCause
Weather condition - temperature extremesFactor
Hard landingLanding - flare/touchdown
Flare - not possible

Aircraft

Registration
N4954W
Reported as
Beech 99A
Category
Airplane
Serial number
U-82
Airframe hours
22,113
Engine
P&W PT6A-27, 550 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Operator
Methow Aviation, Inc.
Registered owner
Methow Aviation Inc
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · December 15, 1988 · 19 hours before
Departed
PDX · Portland, OR
Destination
GEG
Flight plan
IFR
Airport
GAG · Spokane Int'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
50
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
19,512 total · 618 in this make and model · 99 in the last 90 days · 63 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dawn
Wind
50° at 9 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft broken
Temperature
25 °F, dew point 21 °F
Altimeter
29.00 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.