FTW00LA239

NTSB accident investigation · Grumman-Schweizer G-164B · Kaplan, LA · August 21, 2000

Accident · No injuriesLimited investigationFinal report
Date
August 21, 2000, 14:00 local (19:00 UTC)
Place
Kaplan, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N6506KGrumman-Schweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report July 10, 2001
Report
Approved by Office Director
FAA report
20000821014079A
Case key
50050

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 supercharger during takeoff. A contributing 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.

Loss of engine power(partial) - mech failure/malfTakeoff - initial climb
Eng assembly,blower/impeller/integral supercharger - failureCause
Nose overEmergency landing
Terrain condition - none suitableFactor
Terrain condition - ditch

Analysis

According to the pilot, during the takeoff climb with full throttle, the agricultural airplane 'felt heavy and the airplane would not climb.' As the pilot turned the airplane to return to the airport, the airplane 'started to settle and he heard a squealing noise from the engine.' The pilot attempted to dump the load; however, the airplane touched down in a field, impacted a ditch, and nosed over coming to rest inverted. The operator determined that the engine supercharger had failed.

Factual narrative

On August 21, 2000, at 1400 central daylight time, a Grumman-Schweizer G-164B agricultural airplane, N6506K, was substantially damaged when it impacted a ditch during a forced landing following a loss of engine power near Kaplan, Louisiana. The commercial pilot, who was the sole occupant, was not injured. The airplane was registered to and operated by Vincent Flying Service of Kaplan, Louisiana. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 137 aerial application flight. The airplane was departing the Hanks Airport, Kaplan, Louisiana, for a local flight at the time of the accident.

According to the FAA inspector, who responded to the accident site, the pilot reported that during the takeoff climb with full throttle, "the airplane felt heavy and the airplane would not climb." As the pilot turned the airplane to return to the airport, the airplane "started to settle and he heard a squealing noise from the engine." The pilot attempted to dump the load; however, the airplane touched down in a field, impacted a ditch, and nosed over coming to rest inverted.

The FAA inspector stated that the airplane sustained structural damage to the empennage. According to the FAA inspector, the operator determined that the engine supercharger had failed.

Aircraft

Registration
N6506K
Reported as
Grumman-Schweizer G-164B
Category
Airplane
Serial number
344B
Engine
P&W 1340, 1,000 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Vincent Flying Service
Airworthiness certificate
Special, Restricted (Special)
Departed
LA19
Airport
LA19 · Vincent Field

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
47
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
2,000 total

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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