# NTSB FTW88MA021: Convair 640 (340D), N3411, Bartlesville, OK, October 28, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Major investigation · Final report
- Date: October 28, 1987, 07:34 local (13:34 UTC)
- Place: Bartlesville, OK
- Coordinates: 36.730525, -96.069862 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.7305&lon=-96.0699&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report July 3, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 22686
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW88MA021
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22686/pdf
- Page: https://openairdocs.org/ntsb/FTW88MA021

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, cruise - normal
  - 1 engine (cause)
  - fluid,fuel - starvation
  - fuel tank selector position - inattentive, pilot in command (cause)
  - crew/group coordination - improper, pilot in command (cause)
  - in-flight planning/decision - improper, pilot in command (contributing factor)
- Loss of engine power(total) - nonmechanical, cruise - normal
  - all engines (cause)
  - fluid,fuel - starvation (cause)
  - emergency procedure - improper, pilot in command (cause)
  - checklist - inadequate, company/operator management (contributing factor)
- Forced landing, descent - emergency
  - airspeed - excessive, copilot/second pilot
- Gear not extended, landing
  - gear extension - improper use of, pilot in command (cause)
  - electrical system - deteriorated (contributing factor)
- On ground/water collision with object, landing
  - terrain condition - ditch (contributing factor)

## Analysis

THE CAPT WAS CROSS-FEEDING BOTH ENGINES FROM THE RIGHT TANK WHILE THE FIRST OFFICER (F/O) WAS FLYING, WITHOUT INFORMING THE F/O. THE CAPT THEN LEFT THE COCKPIT WHILE CROSS-FEEDING. BOTH TANK VALVES AND THE RIGHT BOOST PUMP WERE ON. THE RIGHT TANK RAN DRY, THE RIGHT ENGINE FAILED, AND THE PROP AUTOFEATHERED WHILE THE CAPT WAS ABSENT. THE CAPT RETURNED, TURNED ON THE LEFT BOOST PUMP, BUT LEFT THE RIGHT BOOST PUMP AND THE VALVES OPEN, AND ATTEMPTED TO RESTART THE RIGHT ENGINE. THE LEFT ENGINE THEN FAILED BUT THIS WAS NOT RECOGNIZED BY THE CREW. THE ELEC SYS FAILED DUE TO THE ATTEMPTED RESTARTS AND THE FACT THAT NON-ESSENTIAL EQUIPMENT WAS NOT TURNED OFF. THE CAPT DID NOT APPLY SUFFICIENT PULL TO THE EMERGENCY GEAR HANDLE TO LOWER THE GEAR MANUALLY. THE ACFT WAS LANDED ON A SHORT WET SOD RUNWAY, WITH THE GEAR AND FLAPS UP, AT A HIGH RATE OF SPEED. THE ACFT RAN OFF THE END OF THE RUNWAY, THROUGH A DITCH, ACROSS A ROAD, AND INTO TREES.

## Aircraft

- Registration: [N3411](https://openairdocs.org/deregistered/N3411-2014-10-02), registration cancelled 2014-10-02, S/N 31, built 1952 (OpenAirDocs)
- Reported make and model: CONVAIR 640 (340D)
- Registry model: [Convair 640-340D](https://openairdocs.org/model/convair-640-340d) (registry code 2422814) (OpenAirDocs)
- Registry engine: [Rolls-Royce DART-542 series](https://openairdocs.org/engine/rolls-royce-dart-542-series) (registry code 54522, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 31
- Airframe hours: 44764
- Engines: Rolls-Royce RDA10-542 2305 horsepower turbo prop
- Damage: Destroyed
- Flight: Part 121
- Operator: Smb Stage Line, Inc
- Registered owner: Sedalia Marshall Boonville
- Airworthiness certificate: Standard, Transport
- Last inspection: AAIP, April 13, 1987, 394 hours before
- Departed: ORD, CHICAGO, IL
- Destination: OKC, OKLAHOMA CITY, OK
- Flight plan: IFR
- Airport: BVO, Frank Phillips, runway 7, 2,550 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 5,389 total, 2,480 in this make and model, 199 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 5 knots
- Visibility: 20 statute miles
- Lowest ceiling: none

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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