LAX89LA186

NTSB accident investigation · Piper PA-32RT-300T · Phoenix, AZ · May 24, 1989

Accident · No injuriesLimited investigationFinal report
Date
May 23, 1989, 20:23 local (May 24, 1989, 03:23 UTC)
Place
Phoenix, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N39520Piper PA-32RT-300T
Weather
Visual (VMC) · Night/dark
Status
Completed · report August 2, 1990
Report
Approved by Office Director
FAA report
19890523012649A
Case key
26401

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 failure of the pilot to maintain adequate clearance behind the B-737 which resulted in the inadvertent encounter with wake turbulence.

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
Clearance - inadequatePilot in commandCause
Procedures/directives - not followedPilot in commandCause
Wake turbulence - encounteredPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The airplane was on a night flight and was making a VFR approach and landing. The pilot had been informed that he was following a B737. On the base leg, the B737 was turning off the runway and the pilot was warned of possible wake turbulence and was cleared to land. As the airplane was over the threshold, the pilot felt a little turbulence and increased his airspeed. The airplane rolled almost 360 degrees. The pilot was able to get the airplane upright before impact. The pilot had a visual sighting on the B737 throughout all of the approach and attempted landing.

Aircraft

Registration
N39520
Reported as
Piper PA-32RT-300T (PA-32RT-30)
Category
Airplane
Serial number
32R-7887099
Airframe hours
2,787
Engine
Lycoming IO-540, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
Wings Express Airline
Registered owner
Wings Express, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 4, 1989 · 34 hours before
Departed
P19 · Chandler, AZ
Destination
PHX
Flight plan
Company VFR
Airport
PHX · Sky Harbor, runway 26L, 10,300 × 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
30
Certificates
Commercial, Flight engineer, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,500 total · 300 in this make and model · 1,325 as pilot in command · 300 in the last 90 days · 90 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
210° at 5 knots
Visibility
35 statute miles
Temperature
93 °F

FAA reports on this event · 1

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