SEA82DA017

NTSB accident investigation · Piper PA-31-350 · Spokane, WA · January 13, 1982

Accident · No injuriesFinal report
Date
January 13, 1982, 10:15 local (18:15 UTC)
Place
Spokane, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N36PBPiper PA-31-350
Weather
Instrument (IMC) · Day
Status
Completed · report January 13, 1983
Report
Approved by Office Director
FAA report
19820113000849A
Case key
72668

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

After arriving in the Spokane area, a full ILS was commenced. It was terminated about 200 ft above the decision height with a missed approach. The aircraft was vectored for a second ILS. During the last 400 ft of this approach, about 3/4 to one inch of mixed rime and clear ice was picked up. The copilot visually identified the approach lights and the ILS was continued to landing. During the flare, the left wing dropped and struck the runway and was substantially damaged. Ice had formed on the leading edges of the wings in about a two inch flat plane, perpendicular to the chord line. At the time of the mishap, fog dispersal operations were in effect. The procedure involved the use of aircraft to disseminate dry ice into the fog to provide condensation nuclei. This procedure increases the fog droplet size to provide subsequent dissipation. It also reduces the temperature of the surrounding air, and in certain conditions, can attribute to airframe icing. Prevailing temperature was 33 deg.

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.

In flight encounter with weatherApproach - faf/outer marker to threshold (ifr)
Weather condition - low ceilingFactor
Weather condition - fogFactor
Weather condition - icing conditionsFactor
Loss of control - in flightLanding - flare/touchdown
Wing - iceFactor
Airspeed - inadequatePilot in commandCause
Stall - inadvertentPilot in command
In flight collision with terrain/waterLanding - flare/touchdown

Aircraft

Registration
N36PB
Reported as
Piper PA-31-350
Category
Airplane
Serial number
317405128
Airframe hours
5,121
Engine
Lycoming TIO-540-J2BD, 350 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Richard Engstrom
Registered owner
Dale E Johson
Departed
GEG · Seattle, WA
Destination
BFI · Spokane, WA
Flight plan
IFR
Airport
Geiger Field, runway 21, 9,000 × 150 ft, concrete

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
36
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
6,295 total · 82 in this make and model · 4,994 as pilot in command · 92 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
200° at 7 knots
Lowest ceiling
100 ft
Temperature
91 °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.

Other investigations on N36PB · 1

Matched to the same aircraft by N-number and date.