MIA88IA168

NTSB incident investigation · Piper PA-42-720 · Chicago, IL · May 11, 1988

Incident · No injuriesIncident investigationFinal report
Date
May 11, 1988, 15:18 local (20:18 UTC)
Place
Chicago, IL
Injuries
274 uninjured
Phase of flight
Approach
Aircraft
N900MPPiper PA-42-720DADSOMcdonnell Douglas DC-10
Weather
Visual (VMC) · Day
Status
Completed · report July 18, 1990
Report
Approved by Office Director
Case key
32060

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

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.

Near collision between aircraftApproach
Miscellaneous - delayedPilot in command
Crew/group coordination - inadequateAtc personnel(lcl/gnd/clnc)Cause
Atc clearance - improperCause
Ifr separation standards - not maintainedAtc personnel(dep/apch)Cause
Near collision between aircraftClimb - to cruise
Miscellaneous - delayedPilot in command
Crew/group coordination - inadequateAtc personnel(lcl/gnd/clnc)Cause
Atc clearance - improperCause
Ifr separation standards - not maintainedAtc personnel(dep/apch)Cause

Analysis

Condor flt 610 (Mcdonnell Douglas DC-10, german registration: dadso) was aprx 2 hrs late as the flt crew members were preparing to takeoff. Subsequently, flt 610 was clrd for takeoff with instructions to cross the 5 DME (on the standard instrument departure/sid) at or above 3000 ft. the takeoff clnc was then canceled, but was reissued about 1 min later with the same restrictions. At abt that time, the flt was exactly 2 hrs overdue & the computer dropped the flt plan datatag & block (as programmed to handle overdue/unused flt plans). After takeoff, flt 610 contacted departure ctl. The ctlr noted only a primary transponder target & observed no alt data. Meanwhile, Piper PA-42, N900MP, was on an IFR arrival for a visual apch to pal-waukee arpt at 2800 ft. subsequently, the two acft converged & passed with about 2 mi (horizontal) & 200 ft (vertical) sepn. Interviews with the ctlrs revealed they had intended flt 610 to climb to 5000 ft as provided by the SID. The error was not noted (with the data tag dropped from the computer).

Aircraft · 2

Registration
N900MP
Reported as
Piper PA-42-720
Category
Airplane
Serial number
42-5501014
Engine
P&W PT6A-61, 720 horsepower, turbo prop
Damage
No damage
Flight
Business · Part 91
Registered owner
Moline Paint Manufactoring Co.
Airworthiness certificate
Standard, Normal
Departed
BNA · Nashville, TN
Destination
PWK · Chicago, IL
Flight plan
IFR
Airport
ORD · Chicago O'Hare Intl
Registration
DADSO
Reported as
Mcdonnell Douglas DC-10
Category
Airplane
Engine
GE CF6, 51,000 lbs thrust, turbo fan
Damage
No damage
Flight
Part 129
Registered owner
Condor Flugendienst
Airworthiness certificate
Standard, Transport
Departed
ORD · Chicago, IL
Destination
Frnkfrt,Germany, OF
Flight plan
IFR
Airport
ORD · Chicago O'Hare Intl, runway 32R, 10,003 × 150 ft, asphalt

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N900MP
Age
49
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
8,000 total · 5,000 in this make and model
Role
Pilot, aircraft 2
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
12,000 total · 1,088 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 5 knots
Visibility
7 statute miles
Lowest ceiling
25,000 ft broken
Altimeter
30.00 inHg
Observed at
ORD, 7 nm away