Rafael Hernandez Airport
Aircraft Accident/Incident Report

Caribbean Sea
Friday, September 18, 1998 14:28 AST

NTSB Narrative Summary Released at Completion of Accident

Two U.S. Customs Service airplanes collided in formation cruise flight while being evacuated from Borinquen, Puerto Rico, to Curacao, Dutch Antilles, due to an approaching hurricane. While in cruise flight at 6,500 ft. msl, N6305U maneuvered closer to the lead airplane, N6302W, to take some photographs. Several minutes later, N6305U's right side of the vertical stabilizer collided with the left side of the nose of N6302W. N6305U was ditched while on short final to an airstrip due to a lack of airplane controllability, while N6302W returned to Borinquen and landed without incident. Prior to departure, the crewmembers of both airplanes were directed to fly as a flight of two. Neither of the second-in-commands (SICs) of either airplane had any previous formation flying training, nor was it approved for the flight. Interviews with U.S. Customs personnel revealed that formation flight occurred, as did photographs taken from the SIC aboard N6305U during the accident flight. The U.S. Customs Service required two pilots to operate the airplane due to mission equipment installation.

NTSB Probable Cause Narrative

The failure of the pilot-in-command of N6305U to maintain physical clearance from the other aircraft (N6302W). Contributing factors were the inadequate visual lookout of all four pilots involved.

Event Information

Type of Event Accident
Event Date 9/18/1998
Event Day of the Week Friday
Time of Event 1428
Event Time Zone Atlantic Standard Time
Event City CARIBBEAN SEA
Event State CARIBBEAN SEA
Event Country --
Zipcode of the event site 00000
Event Date Year 1998
Event Date Month 9
MidAir Collision Indicator Yes
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport RAFAEL HERNANDEZ AIRPORT
Event Location Nearest Airport ID BQN
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 8
Airport Elevation 238
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
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) 25
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
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 1
Injury Total Minor 1
Injury Total None 2
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1954
NTSB Notification Source --
NTSB Notification Date Sep 18 1998 12:00AM
NTSB Notification Time 1650
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 23 2001 9:33AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N6305U N6302W
NTSB Number ATL98GA127A ATL98GA127B
Missing Aircraft Indicator N N
Federal Aviation Reg. Part Part 91: General Aviation Part 91: General Aviation
Type of Flight Plan filed VFR VFR
Flight plan Was Activated? -- --
Damage Destroyed Minor
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name Government Aircraft Fact (GAF) Government Aircraft Fact (GAF)
Aircraft Model N22S N22S
Aircraft Series Identifier N22S N22S
Aircraft Serial Number F-160 F-159
Certified Max Gross Weight 9100 9100
Aircraft Category Airplane Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 5 5
Number of Engines 2 2
Fixed gear or retractable gear Retractable Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness Continuous Airworthiness
Date of Last Inspection Jun 4 1998 12:00AM Aug 10 1998 12:00AM
Airframe hours since last inspection 61 43
Airframe Hours 2983 3126
ELT Installed Yes Yes
ELT Activated No No
ELT Aided Location of Event Site Unknown Unknown
ELT Type -- --
Aircraft Owner Name US CUSTOMS AVIATION OPNS DIV U.S. CUSTOMS AVIATION OPS DIV
Aircraft Owner Street Address 1301 CONSTITUTION AVE NW 5303 1301 CONSTITUTION AVE NW 5303
Aircraft Owner City WASHINGTON WASHINGTON
Aircraft Owner State DC DC
Aircraft Owner Country
Aircraft Owner Zipcode 20229 20229
Operator is an individual? -- --
Operator Name US CUSTOMS SERVICE U.S. CUSTOMS SERVICE
Operator Same as Owner? No No
Operator Is Doing Business As -- --
Operator Address Same as Owner? No No
Operator Street Address 543 BRAMON-RAMEY 543 BROMON-RAMEY
Operator City AGUADILLA AGUADILLA
Operator State PR PR
Operator Country
Operator Zip code 00604 00604
Operator Code
Owner has at least one certificate None None
Other Operator of large aircraft? No No
Certified for Part 133 or 137 Operation Unknown 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) Public Use Public Use
Second Pilot on Board Yes Yes
Departure Point Same as Event No No
Departure Airport Code BQN BQN
Departure City BORINQUEN BORINQUEN
Departure State PR PR
Departure Country
Departure Time 1330 1330
Departure Time Zone AST AST
Destination Same as Local Flt -- --
Destination Airport Code NCC NCC
Destination City CURACAO CURACAO
Destination State OF OF
Destination Country
Specific Phase of Flight Cruise Cruise
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Jan 23 2001 11:29AM Jan 23 2001 11:29AM
User who most recently changed record dbo dbo
Since inspection or accident -- --
Event Location Runway Number and Location 30 8
Runway Length 3000 11701
Runway Width 50 200
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --