CHI93LA088

NTSB accident investigation · Piper PA-28-235 · Lafayette, IN · February 6, 1993

Accident · No injuriesLimited investigationFinal report
Date
February 6, 1993, 11:04 local (16:04 UTC)
Place
Lafayette, IN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8784WPiper PA-28-235
Weather
Instrument (IMC) · Day
Status
Completed · report October 25, 1993
Report
Approved by Office Director
FAA report
19930206001859A
Case key
15665

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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Probable cause

The pilot-in-command's decision to initiate flight into known icing conditions which resulted in an accummulation of airframe ice. The icing conditions and the pilot's disregard of the weather advisory were factors.

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.

Hard landingLanding - flare/touchdown
Weather condition - icing conditionsFactor
Wing - iceCause
Hazardous weather advisory - disregardedPilot in command(cfi)Factor
Flight into known adverse weather - initiatedPilot in command(cfi)Cause
Stall - encounteredPilot in command(cfi)
Landing gear,main gear - overload

Analysis

The instrument flight instructor obtained a preflight weather briefing during which he was advised there were reports of light rime ice. The pilots took off for a local flight to practice approaches. Both pilots reported their approach back to the airport appeared normal until the student began to flare. The airplane '...just seemed to quit flying and sank rapidly to the runway.' The right main landing gear separated from the airplane at ground impact. The airplane skidded to a stop on the runway. Post-accident examination revealed accumulations of rough rime ice between 1/2 and one inch thick on leading edges, etc. The instructor reported he noted ice accumulating on the windshield, but added he was not concerned because the airplane 'could handle light ice very well.' The instructor stated the airplane stalled about 16 mph faster than published stall airspeed.

Aircraft

Registration
N8784W
Reported as
Piper PA-28-235
Category
Airplane
Serial number
28-10330
Airframe hours
3,127
Engine
Lycoming O-540-B4B5, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Brown, Carol
Registered owner
Brown, Carol
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 8, 1992 · 34 hours before
Flight plan
IFR
Airport
LAF · Purdue University, runway 1, 6,500 × 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
50
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
1,575 total · 31 in this make and model · 1,354 as pilot in command · 4 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
70° at 10 knots
Visibility
6 statute miles
Lowest ceiling
800 ft overcast
Temperature
32 °F, dew point 28 °F
Altimeter
30.00 inHg
Observed at
LAF, 1 nm away

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 N8784W · 1

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