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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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May 9, 1993 · Cessna 175 · N7303M

Houghton Lake, MI

Overview

Report Status
Probable Cause
Event Type
Accident
Date
May 9, 1993
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Houghton Lake, MI
Aircraft
Cessna 175
Tail Number
N7303M
Operator
Frederick H Herman
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
CHI93LA166

DURING A NIGHT VFR CROSS COUNTRY FLIGHT THE PILOT REPORTED HE EXPERIENCED AN ENGINE POWER LOSS. HE STATED HE LANDED AT A NEARBY AIRPORT AND SOUGHT A MECHANIC'S HELP. THE COST OF THE MECHANIC WAS PROHIBITIVE AND THE PILOT ATTEMPTED TO DETERMINE THE PROBLEM. HE STATED HE EXAMINED THE ENGINE VISUALLY AND FOUND NOTHING UNUSUAL. HE STATED HE RAN THE ENGINE FOR 20 MINUTES AT VARIOUS RPM SETTINGS. UPON COMPLETION OF THE RUNUP THE PILOT DEPARTED AND CONTINUED HIS CROSS COUNTRY FLIGHT. WHILE AT CRUISE THE ENGINE BEGAN TO LOSE POWER. REMEDIAL ACTION BY THE PILOT DID NOT CORRECT THE POWER LOSS. THE AIRPLANE COLLIDED WITH TREES AND SWAMPY TERRAIN. THE ON-SCENE INVESTIGATION IDENTIFIED AN INTERMITTENTLY FIRING LEFT MAGNETO.

NTSB Probable Cause

THE PILOT OPERATING THE AIRPLANE WITH A KNOWN DEFICIENCY.

Full Narrative

DURING A NIGHT VFR CROSS COUNTRY FLIGHT THE PILOT REPORTED HE EXPERIENCED AN ENGINE POWER LOSS. HE STATED HE LANDED AT A NEARBY AIRPORT AND SOUGHT A MECHANIC'S HELP. THE COST OF THE MECHANIC WAS PROHIBITIVE AND THE PILOT ATTEMPTED TO DETERMINE THE PROBLEM. HE STATED HE EXAMINED THE ENGINE VISUALLY AND FOUND NOTHING UNUSUAL. HE STATED HE RAN THE ENGINE FOR 20 MINUTES AT VARIOUS RPM SETTINGS. UPON COMPLETION OF THE RUNUP THE PILOT DEPARTED AND CONTINUED HIS CROSS COUNTRY FLIGHT. WHILE AT CRUISE THE ENGINE BEGAN TO LOSE POWER. REMEDIAL ACTION BY THE PILOT DID NOT CORRECT THE POWER LOSS. THE AIRPLANE COLLIDED WITH TREES AND SWAMPY TERRAIN. THE ON-SCENE INVESTIGATION IDENTIFIED AN INTERMITTENTLY FIRING LEFT MAGNETO.

Flight

Event TypeAccident
Event Time22:05 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 175
Tail NumberN7303M
Aircraft CategoryAir
DamageDestroyed
OperatorFrederick H Herman
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · GO-300A · Reciprocating · 175
Seats4

People & Injuries

Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 56 · Third Class

Conditions

ConditionsVMC
LightDark Night
Wind100° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 37 C
Altimeter30.00 inHg
Observation Time01:50
Weather SourceWFAC

Appendix: Source Data