CHI84FA148

NTSB accident investigation · Piper Aerostar 600 · Pontiac, MI · April 4, 1984

Accident · No injuriesField investigationFinal report
Date
April 4, 1984, 07:22 local (12:22 UTC)
Place
Pontiac, MI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N3645TPiper Aerostar 600
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840404008429A
Case key
12392

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

On this page

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 collision with objectApproach - faf/outer marker to threshold (ifr)
Weather condition - low ceilingFactor
Weather condition - fogFactor
Weather condition - rainFactor
Weather condition - below approach/landing minimumsFactor
Ifr procedure - improperPilot in commandCause
Decision height - not identifiedPilot in commandCause
Object - tree(s)Factor
Landing gear,main gear - overload
Loss of control - on ground/waterLanding - roll
Directional control - not possiblePilot in command
Ground loop/swerve - uncontrolledPilot in command

Analysis

During an ILS apch, the acft collided with treetops while it was slightly left of the apch course near the middle marker. The plt continued to fly the acft to the rwy & the plane touched down about 1000 ft beyond the threshold. At touchdown, the acft veered to the right & skidded to a stop between the rwy & a taxiway. An exam revealed that the leading edges of the wings & the right main gear were damaged during impact with the trees. Scrape marks were found on the tread of the right main tire which showed that it had skidded about 90 deg to the plane of rotation as if it had been cocked at touchdown. The plt stated that she was chasing the needle deflection while on the ILS apch & was not properly observing the altimeter when the acft hit the trees. The decision height for the ILS apch was 1180 ft MSL. The arpt elevation was 980 ft MSL.

Aircraft

Registration
N3645T
Reported as
Piper Aerostar 600 (AEROSTAR 6)
Category
Airplane
Serial number
600852816124
Engine
Lycoming IO-540-K1J5, 290 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Registered owner
Pdq Air Services, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 7, 1984
Departed
CMH · Columbus, OH
Destination
PTK
Flight plan
IFR
Airport
PTK · Pontiac/Oakland, runway 9R, 6,200 × 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
28
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,615 total · 250 in this make and model · 103 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
140° at 10 knots
Lowest ceiling
100 ft
Altimeter
29.00 inHg
Observed at
PTK

FAA reports on this event · 1

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