# NTSB NYC88LA071: Cessna 402B, N4175G, Bangor, ME, February 1, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 1, 1988, 14:30 local (19:30 UTC)
- Place: Bangor, ME
- Location: 44.8074° N, 68.8281° W: Placed by OpenAirDocs at BANGOR INTL (BGR), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.8074&lon=-68.8281&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 16, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 36087
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC88LA071
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36087/pdf
- Page: https://openairdocs.org/ntsb/NYC88LA071

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(partial) - mech failure/malf, takeoff - initial climb
  - 1 engine
  - fuel system - contamination (contributing factor)
  - fuel system,pump - pressure excessive
  - maintenance - inadequate, other maintenance personnel (contributing factor)
  - fluid,fuel - starvation (contributing factor)
- Forced landing, descent - emergency
  - monitoring - improper, copilot/second pilot (cause)
  - supervision - inadequate, pilot in command (cause)
  - crew/group coordination - inadequate (contributing factor)
  - wrong engine shutdown (cause)
- On ground/water collision with object, landing
  - object - fence (contributing factor)
- On ground/water encounter with terrain/water, landing
  - terrain condition - rough/uneven (contributing factor)

## Analysis

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.

## Aircraft

- Registration: [N4175G](https://openairdocs.org/deregistered/N4175G-2013-08-14), registration cancelled 2013-08-14, S/N 402B1221 (OpenAirDocs)
- Reported make and model: CESSNA 402B
- Registry model: [Cessna 402B](https://openairdocs.org/model/cessna-402b) (registry code 207590P) (OpenAirDocs)
- Category: Airplane
- Serial number: 402B-1221
- Airframe hours: 3466
- Engines: CONTINENTAL TSIO-520-E 325 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Northeast Aeromotive
- Registered owner: Dan Lilley
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 8, 1988, 3 hours before
- Destination: PWM, PORTLAND, ME
- Flight plan: IFR
- Airport: BGR, Banger Intl, runway 15, 11,439 × 300 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; airline transport; airplane ratings: single-engine sea, multi-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 18,163 total, 200 in this make and model, 11 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 6 knots
- Visibility: 5 statute miles
- Lowest ceiling: 6,500 ft broken
- Temperature: 45 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: PWM

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19880201001769A](https://openairdocs.org/incident/19880201001769A), Feb 1, 1988: Cessna 402B, Bangor, ME, Substantial damage. Lost left engine, copilot feathered right engine. PIC landed on runway but ran off onto railroad. Fuel pump fouled.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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