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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

July 30, 1994 · Piper J5C · N74669

Yazoo City, MS

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 30, 1994
Injury Outcomes
1 injury (1 minor injury), 2 uninjured
Location
Yazoo City, MS
Aircraft
Piper J5C
Tail Number
N74669
Operator
Pigg Dennis P
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
MIA94LA188

ABOUT 10 MINUTES INTO A LOCAL FLIGHT, THE ENGINE LOST POWER AND THE PILOT MADE A FORCED LANDING TO AN OPEN FIELD. THE AIRPLANE NOSED OVER ON LANDING. AN EXAMINATION OF THE CARBURETOR REVEALED A WASP NEST IN THE VENTURI THAT SWELLED WHEN SATURATED WITH FUEL. THE NEST WAS INSIDE THE CARBURETOR AND WAS NOT VISIBLE ON PREFLIGHT.

NTSB Probable Cause

PARTIAL BLOCKAGE OF THE CARBURETOR BY A WASP NEST, WHICH WAS NOT VISIBLE DURING PREFLIGHT, AND WHICH RESULTED IN THE LOSS OF POWER.

Full Narrative

On July 29, 1994, about 1910 central daylight time, N74669, a Piper J5C registered to John Granberry, crashed while on a 14 CFR Part 91 personal flight, in Yazoo City, Mississippi. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local flight. The airplane was substantially damaged and the pilot received minor injuries and the 2 passengers reported no injuries. The flight originated about 10 minutes earlier. The pilot stated that after takeoff the airplane engine began to cut in and out. The engine then failed and he attempted a forced landing to a field. The airplane nosed over on landing. Examination of the engine by FAA personnel revealed that about 75% of the carburetor venturi area was blocked with mud dauber nest material,that swelled up when saturated with fuel.

Flight

Event TypeAccident
Event Time19:10 CDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper J5C
Tail NumberN74669
Aircraft CategoryAir
DamageSubstantial
OperatorPigg Dennis P
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-2 · Reciprocating · 100
Seats3

People & Injuries

Injury Summary1 injury (1 minor injury), 2 uninjured
Fatal0
Serious0
Minor1
Uninjured2
Total3
Crew 1Age 40 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind100° @ 4 kt
Visibility10 sm
CeilingBroken clouds 12000 ft
Temperature / Dew Point59
Altimeter30.00 inHg
Observation Time23:56
Weather SourceWFAC

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Appendix: Source Data