# NTSB MIA91IA051: Dassault-Breguet HU-25/A, Bimini, Bahamas, December 22, 1990 - Type: NTSB incident investigation - Classification: Incident · No injuries · Incident investigation · Final report - Date: December 22, 1990, 10:23 local (15:23 UTC) - Place: Bimini, Bahamas - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 11 uninjured - Status: Completed, report July 10, 1992 - Report: Approved by Office Director - NTSB case key (mKey): 32768 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA91IA051 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32768/pdf - Page: https://openairdocs.org/ntsb/MIA91IA051 ## Probable cause (aircraft 2) INADEQUATE VISUAL LOOKOUT BY THE PILOTS OF BOTH AIRCRAFT, RESULTED IN THEIR FAILURE TO SEE-AND-AVOID THE OTHER AIRCRAFT. ## Probable cause (aircraft 1) INADEQUATE VISUAL LOOKOUT BY THE PILOTS OF BOTH AIRCRAFT, RESULTED IN THEIR FAILURE TO SEE-AND-AVOID THE OTHER AIRCRAFT. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Midair collision, climb - to cruise - visual lookout - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot of other aircraft (cause) - Midair collision, cruise - visual lookout - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot of other aircraft (cause) ## Analysis (aircraft 2) A US COAST GUARD DASSAULT BREGUET HU-25A WAS CLIMBING FROM LOW ALT AS A CESSNA 337D WAS CRUISING IN THE SAME AREA AT 4000 FT MSL. SUBSEQUENTLY, THE 2 ACFT CONVERGED. THE CESSNA PLT SAID HE WAS ADJUSTING HIS NAV RADIO TO INTERCEPT AN AIRWAY, WHEN A PSGR WARNED HIM OF THE SITUATION. AS HE LOOKED OUTSIDE, HE SAW THE DASSAULT CONVERGING AT A HI RATE OF SPEED. THE DASSAULT PLT SAID THEY WERE ROLLING OUT OF A LEFT TURN, WHEN THEY SAW THE CESSNA CONVERGING. THE PLTS OF BOTH ACFT INITIATED EVASIVE ACTION, BUT THE VERTICAL STABILIZER OF THE DASSAULT HIT THE BAGGAGE POD ON THE CESSNA. BOTH PLANES CONTINUED FLYING & LANDED SAFELY. ## Analysis (aircraft 1) A US COAST GUARD DASSAULT BREGUET HU-25A WAS CLIMBING FROM LOW ALT AS A CESSNA 337D WAS CRUISING IN THE SAME AREA AT 4000 FT MSL. SUBSEQUENTLY, THE 2 ACFT CONVERGED. THE CESSNA PLT SAID HE WAS ADJUSTING HIS NAV RADIO TO INTERCEPT AN AIRWAY, WHEN A PSGR WARNED HIM OF THE SITUATION. AS HE LOOKED OUTSIDE, HE SAW THE DASSAULT CONVERGING AT A HI RATE OF SPEED. THE DASSAULT PLT SAID THEY WERE ROLLING OUT OF A LEFT TURN, WHEN THEY SAW THE CESSNA CONVERGING. THE PLTS OF BOTH ACFT INITIATED EVASIVE ACTION, BUT THE VERTICAL STABILIZER OF THE DASSAULT HIT THE BAGGAGE POD ON THE CESSNA. BOTH PLANES CONTINUED FLYING & LANDED SAFELY. ## Aircraft 1 - Registration: USCG (not matched to a registry record) - Reported make and model: Dassault-Breguet HU-25/A - Category: Airplane - Serial number: 394 - Airframe hours: 4685 - Engines: GARRETT ATF 3 5440 lbs thrust turbo fan - Damage: Minor damage - Flight: Public aircraft, Part 91 - Operator: Commandant Uscg \ - Registered owner: Commandant Uscg $ - Last inspection: AAIP, November 2, 1990, 137 hours before - Departed: OPF, OPA LOCKA, FL - Destination: OPF, OPA LOCKA, FL - Flight plan: Military VFR ## Aircraft 2 - Registration: [N156GB](https://openairdocs.org/deregistered/N156GB-2001-01-12), registration cancelled 2001-01-12, S/N 337-1100 (OpenAirDocs) - Reported make and model: CESSNA 337D - Registry model: [Cessna 337D](https://openairdocs.org/model/cessna-337d) (registry code 2075717) (OpenAirDocs) - Category: Airplane - Serial number: 1100 - Engines: CONTINENTAL IO-360-D 200 horsepower reciprocating - Damage: Minor damage - Flight: Personal, Part 91 - Registered owner: International Field Studies - Airworthiness certificate: Standard, Normal - Departed: MYAN, SAN ANDROS, OF - Destination: FLL, FORT LAUDERDALE, FL - Flight plan: IFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft 1; age 28; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 1,189 total, 950 in this make and model, 169 as pilot in command, 98 in the last 90 days, 51 in the last 30 days, 4 in the last 24 hours - Pilot, aircraft N156GB; age 29; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 1,740 total, 220 in this make and model, 1,671 as pilot in command, 180 in the last 90 days, 35 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 110° at 8 knots - Visibility: 7 statute miles - Temperature: 81 °F, dew point 64 °F - Altimeter: 30.10 inHg - Observed at: MIA, 68 nm away 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.