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NTSB Report
February 23, 1990 · Cessna 170A · N9130A
Gallup, NM
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 23, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Gallup, NM
Aircraft
Cessna 170A
Tail Number
N9130A
Operator
Frank D Scott
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN90LA064
THE AIRCRAFT HIT A DITCH DURING A FORCED LANDING AFTER THE ENGINE SEIZED DURING INITIAL CLIMB AFTER TAKEOFF. THIS WAS THE FIRST FLIGHT ON A NEWLY REBUILT ENGINE. THE ENGINE HAD BEEN RUN IN ON THE GROUND AND THE PILOT MADE THREE FULL POWER, STATIC RUNS BEFORE TAKEOFF. AN FAA INSPECTOR EXAMINED THE ENGINE AFTER THE ACCIDENT. HE SAID THE SPARK PLUGS FROM CYLINDERS NUMBER 1, 3, & 5 SHOWED EVIDENCE OF HAVING RUN WITH A LEAN MIXTURE. THE NUMBER 3 & 5 CYLINDERS WERE SCUFFED AND METAL FROM THE PISTONS HAD TRANSFERRED TO THE CYLINDER WALLS.
NTSB Probable Cause
IMPROPER OPERATION OF THE ENGINE DURING PREFLIGHT PREPARATION, WHICH RESULTED IN OVERHEATING OF THE ENGINE AND DAMAGE TO INTERNAL COMPONENTS.
Full Narrative
THE AIRCRAFT HIT A DITCH DURING A FORCED LANDING AFTER THE ENGINE SEIZED DURING INITIAL CLIMB AFTER TAKEOFF. THIS WAS THE FIRST FLIGHT ON A NEWLY REBUILT ENGINE. THE ENGINE HAD BEEN RUN IN ON THE GROUND AND THE PILOT MADE THREE FULL POWER, STATIC RUNS BEFORE TAKEOFF. AN FAA INSPECTOR EXAMINED THE ENGINE AFTER THE ACCIDENT. HE SAID THE SPARK PLUGS FROM CYLINDERS NUMBER 1, 3, & 5 SHOWED EVIDENCE OF HAVING RUN WITH A LEAN MIXTURE. THE NUMBER 3 & 5 CYLINDERS WERE SCUFFED AND METAL FROM THE PISTONS HAD TRANSFERRED TO THE CYLINDER WALLS.
Flight
Event TypeAccident
Event Time11:00 MST
Nearest AirportGALLUP (0nm N)
Runway6
Runway Length6300 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 170A
Tail NumberN9130A
Aircraft CategoryAir
DamageSubstantial
OperatorFrank D Scott
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C-145 · Reciprocating · 145
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 70 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 6 kt
Visibility25 sm
CeilingNone
Temperature / Dew Point45 C / 14 C
Altimeter30.00 inHg
Observation Time18:07
Weather SourceWFAC