BFO89FA027

NTSB accident investigation · Cessna 152 · West Chicago, IL · April 15, 1989

Accident · FatalField investigationFinal report
Date
April 15, 1989, 08:51 local (12:51 UTC)
Place
West Chicago, IL
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N93748Cessna 152
Weather
Visual (VMC) · Day
Status
Completed · report March 5, 1990
Report
Approved by Office Director
Safety recommendations
Yes
FAA report
19890415007999A
Case key
11456

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

Improper instruction by the student's flight instructor regarding the execution of s-turns on final approach to increase spacing and the retraction of flaps fully when executing a go-around and the failure of the student pilot to maintain adequate flying speed while making steep s-turns on final approach. Contributing factors were: inadequate ATC control tower service and traffic separation, improper supervision in the tower, and inexperience of the student pilot.

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.

Loss of control - in flightApproach - vfr pattern - final approach
Control tower service - inadequateAtc personnel(lcl/gnd/clnc)Factor
Visual separation - inadequateAtc personnel(lcl/gnd/clnc)Factor
Supervision - improperAtc personnel(supervisor)Factor
Maneuver - improperPilot in commandCause
Raising of flaps - improperPilot in commandFactor
Improper trainingFlight instructor(on ground)Cause
Lack of total experiencePilot in commandFactor
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterApproach

Analysis

Student in Cessna 152 (N93748) was sequenced to lnd bhnd N97M as Beech 90 (N20) was awaiting tkof. As N97M was lndg, N20 was clrd on rwy to hold & the student was clrd to lnd. 39 sec ltr, N20 was clrd for tkof. Shortly thereafter, N93748STALLED and crashed aprx 580' short of the rwy. Witnesses said the student flew fm a close base to a short final apch, then made 2 or 3 steep s-turns at low speed, as if to get more sepn bhnd N20. Tower supvsr (cic) observed inadqt sepn but took no action to correct it. Witnesses said N20 was holding on the rwy when the student began s-turning. Bfr tkof, the plt of N93748 told gnd ctl she was a student. This info was not passed to LCL ctlrs. LCL ctlr was in trng. Neither he nor his instructor knew the plt of N93748 was a student. Aim rcmdd student id on initial call to rdo fac. But, ATC hndbk didn't require info to be fwdd. Flaps were fnd at 10 deg; student was trnd to use full flaps and use s-turns on final for spacing, and to raise flaps full up for go-arnd; POH rcmdd 20 deg of flaps until safe speed was obtained.

Aircraft

Registration
N93748
Reported as
Cessna 152
Category
Airplane
Serial number
15285546
Airframe hours
3,152
Engine
Lycoming O-235-L2C, 110 horsepower, reciprocating
Damage
Destroyed
Flight
Instructional · Part 91
Operator
Planemaster Inc.
Registered owner
Robert L. Stevenson
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 12, 1989 · 10 hours before
Departed
DPA
Airport
DPA · Dupage, runway 28, 4,000 × 75 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
33
Certificate
Student
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
33 total · 32 in this make and model · 3 as pilot in command · 12 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 10 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 30 °F
Altimeter
29.00 inHg
Observed at
DPA

FAA reports on this event · 1

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