Adjuntas Airport
Aircraft Accident/Incident Report

Adjuntas
Saturday, December 5, 1998 14:00 EST

NTSB Narrative Summary Released at Completion of Accident

During the initial climb after takeoff the engine lost power. The pilot elected to return to the airport for an emergency landing. The pilot was forced to land in a grassy area short of the airport. The engine examination disclosed that the number three cylinder had no compression and no intake or exhaust valve movement was noted when the engine was rotated though. .

NTSB Probable Cause Narrative

The loss of engine power due to the restricted movement of the intake and exhaust valves on number 3 cylinder.

Event Information

Type of Event Accident
Event Date 12/5/1998
Event Day of the Week Saturday
Time of Event 1400
Event Time Zone Eastern Standard Time
Event City ADJUNTAS
Event State PUERTO RICO
Event Country --
Zipcode of the event site 00612
Event Date Year 1998
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ADJUNTAS
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 236
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1350 Eastern Standard Time
Direction of event from weather observation facility (degrees) 163
Weather Observation Facility ID SJU
Elevation of weather observation facility 13
Distance of event from weather observation facility (units?) 43
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 1002
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 10178
NTSB Notification Source --
NTSB Notification Date Dec 5 1998 12:00AM
NTSB Notification Time 2000
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jul 30 2001 11:11AM
User who most recently changed record MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5957T
NTSB Number ATL99LA029
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 150B
Aircraft Series Identifier 150B
Aircraft Serial Number 15060657
Certified Max Gross Weight 1600
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 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 6 1998 12:00AM
Airframe hours since last inspection 6
Airframe Hours 3890
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name GILL MERCADO
Aircraft Owner Street Address HC-01 5481
Aircraft Owner City SABANA HOYOS
Aircraft Owner State PR
Aircraft Owner Country
Aircraft Owner Zipcode 00688
Operator is an individual? --
Operator Name RUBEN ESPADA
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address K STREET L13 JARDINE DE ARECIB
Operator City ARECIBO
Operator State PR
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City ADJUNTAS
Departure State PR
Departure Country
Departure Time 1355
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code ABO
Destination City ARECIBO
Destination State PR
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 12
Runway Length 1600
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --