LAX92LA157

NTSB accident investigation · Cessna 172 · Prescott, AZ · March 31, 1992

Accident · No injuriesLimited investigationFinal report
Date
March 31, 1992, 08:16 local (15:16 UTC)
Place
Prescott, AZ
Injuries
4 uninjured
Phase of flight
Approach
Aircraft
N250ERCessna 172N267ERCessna 172N
Weather
Visual (VMC) · Day
Status
Completed · report August 26, 1993
Report
Approved by Office Director
Case key
27585

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 other airplane's flight instructor's poor supervision of the flight; the other airplane's flight instructor's and dual student's misidentification of the airplane the student pilot was following and the other airplane's flight instructor's and dual student's poor visual lookout.

The flight instructor's poor supervision of the flight; the flight instructor's and dual student's misidentification of the other airplane and the flight instructor's and dual student's poor visual lookout. Contributing to this accident was the soft, rough and uneven terrain.

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.

Midair collisionApproach - vfr pattern - base leg/base to final
Supervision - poorPilot in command(cfi)Cause
Identification of aircraft visually - improperPilot in command(cfi)Cause
Identification of aircraft visually - improperDual studentCause
Visual lookout - poorPilot in command(cfi)Cause
Visual lookout - poorDual studentCause
Forced landingDescent - emergency
Nose overLanding - roll
Terrain condition - softFactor
Terrain condition - rough/unevenFactor
Midair collisionApproach - vfr pattern - final approach
Supervision - poorPilot of other aircraftCause
Identification of aircraft visually - improperPilot of other aircraftCause
Visual lookout - poorPilot of other aircraftCause

Analysis

Both airplanes were in the tower controlled traffic pattern; one airplane was on a left downwind with a CFI, dual student, and a student pilot/observer occupying the rear seat; the other airplane was on a right downwind and was being flown by a solo student pilot. The local controller cleared the solo student pilot on the right downwind to land following an airplane to the student pilot's left. The local controller then cleared the dual student's flight to follow the solo student airplane's on the right downwind. The dual student's flight acknowledged the clearance, but both pilots misidentified the solo student's airplane and began following the airplane ahead of and to the left of the solo student's airplane. After the local controller cleared the solo student to land he then cleared the dual student's flight to follow the solo student's airplane. The dual student's flight followed the airplane ahead of the solo student and began to turn onto the final approach. Shortly thereafter the solo student's airplane descended onto the dual student's airplane. The solo student landed on the runway without further incident. The CFI in the dual student's airplane executed a forced landing in the open desert terrain, but nosed over during the landing roll.

Both airplanes were in the tower controlled traffic pattern; one airplane was on a left downwind with a CFI, dual student, and a student pilot/observer occupying the rear seat; the other airplane was on a right downwind and was being flown by a solo student pilot. The local controller cleared the solo student pilot on the right downwind to land following an airplane to the student pilot's left. The local controller then cleared the dual student's flight to follow the solo student airplane's on the right downwind. The dual student's flight acknowledged the clearance, but both pilots misidentified the solo student's airplane and began following the airplane ahead of and to the left of the solo student's airplane. After the local controller cleared the solo student to land he then cleared the dual student's flight to follow the solo student's airplane. The dual student's flight followed the airplane ahead of the solo student and began to turn onto the final approach. Shortly thereafter the solo student's airplane descended onto the dual student's airplane. The solo student landed on the runway without further incident. The CFI in the dual student's airplane executed a forced landing in the open desert terrain, but nosed over during the landing roll.

Aircraft · 2

Registration
N250ER
Reported as
Cessna 172
Category
Airplane
Serial number
17270499
Airframe hours
6,448
Engine
Lycoming O-360-A4M, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Embry-Riddle Aeronautical Unv
Registered owner
Embry-Riddle Aeronautical Unv
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
AAIP · March 17, 1992 · 28 hours before
Airport
PRC · Ernest A. Love Field, runway 21, 7,601 × 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.

Registration
N267ER
Reported as
Cessna 172N
Category
Airplane
Serial number
1727056D
Airframe hours
4,736
Engine
Lycoming O-360-A4M, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Embry-Riddle Aeronautical Unv
Registered owner
Embry-Riddle Aeronautical Unv
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
AAIP · March 16, 1992 · 38 hours before
Airport
PRC · Ernest A. Love Field, runway 21, 7,616 × 150 ft, asphalt

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N250ER
Age
23
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
1,600 total · 700 in this make and model · 1,515 as pilot in command · 130 in the last 90 days · 45 in the last 30 days · 5 in the last 24 hours
Role
Pilot, aircraft N267ER
Age
19
Certificate
Student
Medical
Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
61 total · 61 in this make and model · 1 as pilot in command · 22 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 8 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 36 °F
Altimeter
30.00 inHg
Observed at
PRC, 1 nm away

FAA reports on this event · 2

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