Aircraft Accident/Incident Report

Aguadilla
Friday, May 10, 1991 11:20 AST

NTSB Narrative Summary Released at Completion of Accident

THE AIRPLANE SUSTAINED A PARTIAL LOSS OF ENGINE POWER ON THE LEFT ENGINE ON TAKEOFF CLIMB DUE TO THE FAILURE OF THE NO. 8 ENGINE ASSEMBLY CYLINDER. THE AIRPLANE WAS OBSERVED BY WITNESSES AT 400 FEET AGL IN A 20 DEGREE LEFT BANK WHILE MANEUVERING TO RETURN TO THE DEPARTURE AIRPORT. THE ANGLE OF BANK INCREASED TO 60 DEGREES WITH A NOTICEABLE DECREASE IN AIRSPEED WHILE THE AIRPLANE DESCENDED BELOW 300 FEET AGL. THE LEFT WING DROPPED 90 DEGREES TO THE LEFT AND THE NOSE PITCHED DOWN VERTICALLY. THE AIRPLANE APPEARED TO REGAIN ELEVATOR AUTHORITY AND LEVELED OUT BEFORE ENCOUNTERING A SECONDARY STALL. THE AIRPLANE COLLIDED WITH THE TERRAIN AND WAS DESTROYED BY POSTCRASH FIRE.

NTSB Probable Cause Narrative

THE PILOT IN COMMAND'S FAILURE TO MAINTAIN AIRSPEED (VS) AFTER A PARTIAL LOSS OF ENGINE POWER ON THE LEFT ENGINE DUE TO FAILURE OF THE NO. 8 ENGINE ASSEMBLY CYLINDER. THIS RESULTED IN AN IN FLIGHT LOSS OF CONTROL (STALL), AND IN FLIGHT COLLISION WITH TERRAIN.

Event Information

Type of Event Accident
Event Date 5/10/1991
Event Day of the Week Friday
Time of Event 1120
Event Time Zone Atlantic Standard Time
Event City AGUADILLA
Event State PUERTO RICO
Event Country --
Zipcode of the event site 00604
Event Date Year 1991
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Atlantic Standard Time
Direction of event from weather observation facility (degrees) 80
Weather Observation Facility ID JBQ
Elevation of weather observation facility 237
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation AST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 80
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1069
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 44014
Date of most recent change to record Dec 12 2000 10:02AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N134FS
NTSB Number MIA91FA140
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Unknown
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name MCDONNELL DOUGLAS
Aircraft Model DC-3C
Aircraft Series Identifier DC-3C
Aircraft Serial Number 99848
Certified Max Gross Weight 26900
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name FOUR STAR AVIATION
Aircraft Owner Street Address C.F. KING AIRPORT
Aircraft Owner City ST. THOMAS
Aircraft Owner State VI
Aircraft Owner Country
Aircraft Owner Zipcode 00802
Operator is an individual? --
Operator Name FOUR STAR AVIATION
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address C.F. KING AIRPORT
Operator City ST. THOMAS
Operator State VI
Operator Country
Operator Zip code 00802
Operator Code FHCA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code JBQ
Departure City AGUADILLA
Departure State PR
Departure Country
Departure Time 1118
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code PSE
Destination City PONCE
Destination State PR
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --