MIA91LA192

NTSB accident investigation · Cessna 150M · Caribbean Sea · July 27, 1991

Accident · Minor injuriesLimited investigationFinal report
Date
July 27, 1991, 16:00 local (22:00 UTC)
Place
Caribbean Sea
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6088KCessna 150M
Weather
Visual (VMC) · Day
Status
Completed · report May 27, 1993
Report
Approved by Office Director
FAA report
19910727062829A
Case key
32909

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Improper placement of the boost pump selector by the pilot in command, and electrical system failure for undetermined reasons. This resulted in the total loss of engine power due to fuel starvation.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerCruise - normal
Fuel boost pump selector position - improperPilot in commandCause
Electrical system - failure,totalCause
Electrical system - undeterminedCause
Fluid,fuel - starvation
Forced landingDescent - emergency
DitchingDescent - emergency

Analysis

The flt departed using fuel from the main fuel tanks to supply the eng and climbed to alt. The plt then utilized the fuel from the electrically driven aux fuel sys but stated that the eng quit 1 hr 15 minutes later. He determined that there was a failure or malfunction of the electrical sys and fuel from the main tanks was then used to supply the eng. The eng was restarted. The flt diverted to an alternate and the plt attempted to supply fuel to the eng from the aux fuel tank by turning on the shutoff valve and both fuel pumps but was unsuccessful. The eng eventually quit due to fuel exhaustion in the main fuel tanks. He ditched the acft near an island, swam to it, and was rescued 26 hrs later. The acft was not recovered. He further stated that he believes that the fuel pumps overloaded the electrical sys but in retrospect believes the alternator failed. The aux fuel sys incorporates two electric pumps but only one is to be used for normal operation. The second pump is to be used only for a failure or malfunction of the first pump.

Aircraft

Registration
N6088K
Reported as
Cessna 150M
Category
Airplane
Serial number
15077519
Engine
Continental O-200A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Operator
Aero Taxi, Inc.
Registered owner
Aero Taxi, Inc.
Last inspection
Unknown · January 2, 2000
Departed
MWCR · Grand Cayman, OF
Destination
MPTO · Panama City, OF
Flight plan
IFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
19
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
275 total · 14 in this make and model · 200 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 12 knots
Visibility
5 statute miles
Lowest ceiling
None
Temperature
90 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.