FTW93LA177

NTSB accident investigation · Weatherly 620B · Crowley, LA · June 5, 1993

Accident · No injuriesLimited investigationFinal report
Date
June 5, 1993, 11:15 local (16:15 UTC)
Place
Crowley, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N2002EWeatherly 620B
Weather
Visual (VMC) · Day
Status
Completed · report September 13, 1994
Report
Approved by Office Director
FAA report
19930605016859A
Case key
18765

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

Severe propeller and airframe vibration for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.

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.

Airframe/component/system failure/malfunctionTakeoff - initial climb
Propeller system/accessories - vibrationCause
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - rough/uneven
Terrain condition - none suitableFactor

Analysis

Shortly after liftoff, the airplane shook hard, settled, and the right main gear impacted the ground. The airplane then began to climb and the shaking increased. The airplane subsequently settled back down to the ground and collided with a rice levee. The operator reported a loss of power due to a propeller malfunction. An examination of the propeller did not reveal any anomalies that would have contributed to an airplane vibration or power loss.

Factual narrative

On June 5, 1993, at 1115 central daylight time, a Weatherly 620B, N2002E, sustained substantial damage when it impacted the ground following a loss of power during takeoff. The commercial pilot sustained minor injuries. Visual meteorological conditions prevailed for the local aerial application flight.

During a telephone interview, conducted by the Federal Aviation Administration inspector, the operator reported that the airplane hopper was loaded with 1766 pounds of dry fertilizer. The operator stated that immediately after liftoff, the airplane shook "hard", the right wing dropped, and the right main gear contacted the ground about 500 to 600 feet from the point of liftoff. The operator also stated that the airplane bounced and started to climb, but the vibration increased, and it subsequently settled back to the ground, hitting a levee.

The operator reported to the investigator in charge that a rod arm bushing assembly linkage for the propeller had failed in flight and the airplane could not sustain flight due to the vibration. An examination of the propeller assembly did not reveal any anomalies that would have contributed to a power loss or vibration.

Aircraft

Registration
N2002E
Reported as
Weatherly 620B
Category
Airplane
Serial number
1554
Engine
P&W R-985-AN1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Walsh Aviation, Inc.
Airworthiness certificate
Special, Restricted (Special)
Departed
NONE
Destination
NONE
Airport
NONE · Unk/Na, runway 36, 2,500 × 55 ft, dirt

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
45
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
9,497 total · 210 in this make and model · 9,497 as pilot in command · 88 in the last 90 days · 110 in the last 30 days · 12 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 2 knots
Visibility
15 statute miles
Lowest ceiling
None
Altimeter
29.00 inHg

FAA reports on this event · 1

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