MIA89LA127

NTSB accident investigation · Air Tractor AT-301 · Fort Pierce, FL · April 13, 1989

Accident · No injuriesLimited investigationFinal report
Date
April 13, 1989, 13:00 local (17:00 UTC)
Place
Fort Pierce, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3159DAir Tractor AT-301
Weather
Visual (VMC) · Day
Status
Completed · report June 28, 1991
Report
Approved by Office Director
FAA report
19890413007879A
Case key
32421

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

Failure of the number five cylinder. Factors related to the accident were: the proximity of homes in the area, which precluded jettisoning of the chemical load, and high vegetation in the emergency landing area.

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 engine power(partial) - mech failure/malfTakeoff - initial climb
Engine assembly,cylinder - failure,totalCause
Forced landingDescent - emergency
Object - residenceFactor
Load jettison - performed
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - high vegetationFactor

Analysis

The plt stated that while climbing after takeoff, the acft eng started to gradually lose power, then started missing. Subsequently, he made an emergency landing in some palmetto bushes, which damaged the acft's landing gear & wings. An exam of the eng revealed the #5 cylinder assembly was cracked, which resulted in the loss of power. The plt noted that there were homes in the area, which precluded him from jettisoning his load.

Aircraft

Registration
N3159D
Reported as
Air Tractor AT-301
Category
Airplane
Serial number
301-0471
Airframe hours
4,232
Engine
P&W R-1340-53H1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
S.Eastern Aerial Crop Svc.
Registered owner
Southeastern Aircraft Sales
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · March 15, 1989 · 96 hours before
Departed
FPR · Fort Pierce, FL

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
57
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
25,000 total · 3,700 in this make and model · 26,300 as pilot in command · 162 in the last 90 days · 60 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 12 knots
Visibility
7 statute miles
Lowest ceiling
25,000 ft broken
Temperature
75 °F, dew point 70 °F
Altimeter
30.00 inHg
Observed at
VRB, 10 nm away

FAA reports on this event · 1

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

Other investigations on N3159D · 1

Matched to the same aircraft by N-number and date.