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Aviation safety reports, made easier to study

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February 1, 1988 · Cessna 402B · N4175G

Bangor, ME

Overview

Report Status
Preliminary report
Event Type
Accident
Date
February 1, 1988
Injury Outcomes
No injuries (3 uninjured)
Location
Bangor, ME
Aircraft
Cessna 402B
Tail Number
N4175G
Operator
Northeast Aeromotive
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC88LA071

THE CREW RPRTD THAT DRG TAKEOFF, A POWER SURGE OCCURRED AFTER THE ACFT HAD CLIMBED ABOUT 400 TO 500 FT. THE COPLT SAW WHAT HE LATER SAID WAS A RIGHT FUEL FLOW FLUCTUATION & TOLD THE PLT (PIC) THAT THE RIGHT ENG WAS LOSING POWER. THE PIC TOLD THE COPLT TO SECURE THE ENG. ANTICIPATING NO SERIOUS PROBLEM, THE PIC INTENDED TO REMAIN IN THE PATTERN & MAKE A SINGLE ENG LANDING. HOWEVER, HE WAS UNABLE TO MAINT SPEED WITHOUT DSCNDG & WAS FORCED TO LAND. SUBSEQUENTLY, THE ACFT WENT THRU A FENCE, CROSSED A RAILROAD TRACK & STOPPED ON A ROAD. DRG AN OPNL CHECK OF THE ENGS, THE RIGHT ENG STARTED & RAN NORMALLY. HOWEVER, THE LEFT ENG WAS DIFFICULT TO START & WOULD NOT RUN ABOVE 1000 RPM UNTIL ANOTHER FUEL METERING VALVE WAS INSTALLED. A TEARDOWN OF THE FAULTY METERING VALVE REVEALED CONTAMINATION FROM AN UNKNOWN SOURCE. ALSO, THE LEFT FUEL PUMP DISCHARGE PRESSURE WAS FOUND TO BE 62 PSI. AN ADJUSTMENT OF THE ALTITUDE ANEROID CONTROL RETURNED THE PUMP DISCHARGE PRESSURE TO WITHIN THE MAX LIMIT OF 32.5 PSI.

Full Narrative

THE CREW RPRTD THAT DRG TAKEOFF, A POWER SURGE OCCURRED AFTER THE ACFT HAD CLIMBED ABOUT 400 TO 500 FT. THE COPLT SAW WHAT HE LATER SAID WAS A RIGHT FUEL FLOW FLUCTUATION & TOLD THE PLT (PIC) THAT THE RIGHT ENG WAS LOSING POWER. THE PIC TOLD THE COPLT TO SECURE THE ENG. ANTICIPATING NO SERIOUS PROBLEM, THE PIC INTENDED TO REMAIN IN THE PATTERN & MAKE A SINGLE ENG LANDING. HOWEVER, HE WAS UNABLE TO MAINT SPEED WITHOUT DSCNDG & WAS FORCED TO LAND. SUBSEQUENTLY, THE ACFT WENT THRU A FENCE, CROSSED A RAILROAD TRACK & STOPPED ON A ROAD. DRG AN OPNL CHECK OF THE ENGS, THE RIGHT ENG STARTED & RAN NORMALLY. HOWEVER, THE LEFT ENG WAS DIFFICULT TO START & WOULD NOT RUN ABOVE 1000 RPM UNTIL ANOTHER FUEL METERING VALVE WAS INSTALLED. A TEARDOWN OF THE FAULTY METERING VALVE REVEALED CONTAMINATION FROM AN UNKNOWN SOURCE. ALSO, THE LEFT FUEL PUMP DISCHARGE PRESSURE WAS FOUND TO BE 62 PSI. AN ADJUSTMENT OF THE ALTITUDE ANEROID CONTROL RETURNED THE PUMP DISCHARGE PRESSURE TO WITHIN THE MAX LIMIT OF 32.5 PSI.

Flight

Event TypeAccident
Event Time14:30 EST
Nearest AirportBanger Intl (0nm N)
Runway15
Runway Length11439 ft
Runway Width300 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 402B
Tail NumberN4175G
Aircraft CategoryAir
DamageSubstantial
OperatorNortheast Aeromotive
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-E · Reciprocating · 325
Seats10

People & Injuries

Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 56 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind180° @ 6 kt
Visibility5 sm
CeilingBroken clouds 6500 ft
Temperature / Dew Point45 C / 43 C
Altimeter30.00 inHg
Observation Time19:49
Weather SourceWFAC

Appendix: Source Data