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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

October 28, 1993 · Cessna 177B · N18174

Pleasant Grove, CA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
October 28, 1993
Injury Outcomes
No injuries (2 uninjured)
Location
Pleasant Grove, CA
Aircraft
Cessna 177B
Tail Number
N18174
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX94LA026

THE INSTRUCTOR REPORTED THAT HE PULLED THE MIXTURE TO IDLE CUT OFF TO SIMULATE AN ENGINE FAILURE FOR THE STUDENT. WHEN HE TRIED TO RESTART THE ENGINE, THE STARTER WOULD NOT TURN THE PROPELLER. A FORCED LANDING WAS MADE IN A RICE PADDY AND THE AIRPLANE NOSED OVER. THE STARTER WAS SUBSEQUENTLY TESTED AND FOUND TO DEVELOP 50% OF ITS DESIGNED CRANKING POWER. IT ALSO MADE GRINDING NOISES. INSPECTION OF THE STARTER REVEALED THAT IT HAD 24 VOLT BRUSHES INSTEAD OF THE REQUIRED 12 VOLT BRUSHES. FURTHER INSPECTION REVEALED THAT THE STARTER WAS NOT LUBRICATED, HAD A DRY BENDIX COUPLING, AND WAS CRACKED AT THE REAR BEARING HOUSING. COMPLETE REVIEW OF THE AIRPLANE'S MAINTENANCE RECORDS REVEALED NO HISTORICAL INFORMATION ON THE STARTER REGARDING DATE OF MANUFACTURE, OVERHAUL, OR INSTALLATION ON THE ENGINE.

NTSB Probable Cause

THE FAILURE OF THE STARTER TO TURN THE ENGINE OVER DUE TO INADEQUATE MAINTENANCE AND INSPECTION.

Full Narrative

On October 27, 1993, at 1800 Pacific daylight time, a Cessna 177B, N18174, landed in a rice paddy near Pleasant Grove, California, when the pilot was unable to restart the engine following a simulated loss of engine power. The certificated flight instructor was conducting a local area dual instructional flight at the time. The airplane, operated by Sacramento Aero Service, sustained substantial damage. Neither the instructor nor the student pilot were injured. Visual meteorological conditions prevailed. The flight originated from Sacramento Natomas Field, Sacramento, California, on the day of the mishap at 1730. In a verbal and written statement, the pilot reported that he pulled the mixture to idle cut off to simulate an engine failure for the student. He said that when he tried to restart the engine, the starter would not turn the propeller. He said he chose a landing site and landed the plane in a rice paddy. The aircraft nosed over during the landing roll. The starter was removed and taken to George's Electrical Service in Sacramento, California. The starter was put on a calibrated test stand where it was tested. It developed 50 percent of its designed cranking power and made grinding noises. Inspection of the starter revealed that the starter had 24 volt brushes instead of the required 12 volt brushes. Further inspection also revealed that the starter was not lubricated, had a dry bendix coupling, and was cracked at the rear bearing housing. A complete review of the maintenance records for the aircraft revealed no historical information on the starter. The dates of manufacture, overhaul, and installation on the engine were not located.

Flight

Event TypeAccident
Event Time18:00 PDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 177B
Tail NumberN18174
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1F6 · Reciprocating · 180
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 47 · Second Class

Conditions

ConditionsVMC
LightDusk
WindCalm
CeilingNone
Temperature / Dew Point64 F / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data