Accident Hiller UH-12D N67155, Wednesday 8 June 1983
ASN logo
 

Date:Wednesday 8 June 1983
Time:19:30 LT
Type:Silhouette image of generic UH12 model; specific model in this crash may look slightly different    
Hiller UH-12D
Owner/operator:Raco Helicopter Corporation
Registration: N67155
MSN: 1335
Year of manufacture:1961
Total airframe hrs:7055 hours
Engine model:Lycoming VO-435-A1C
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Bricktown, NJ -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Agricultural
Departure airport:Farmingdale, NJ (BLM
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
THE PLT REPORTED AN ERRATIC RPM DROP & A PARTIAL LOSS OF POWER DURING A SWATH RUN. THIS OCCURRED WHEN THE HELICOPTER WAS APRX 10 FT ABOVE TREES AT APRX 40 KTS. THE ACFT BEGAN LOSING AIRSPEED & ALTITUDE. DURING AN EMERGENCY LANDING, THE TAIL ROTOR & MAIN ROTOR BLADES STRUCK TREE BRANCHES & THE PLEXIGLASS & LANDING GEAR WERE DAMAGED. DURING AN INVESTIGATION, THE IGNITION HARNESSES WERE CHECKED & THE #4 & #6 LEAD ASSEMBLIES, PN 10-720642, SHOWED LEAKAGE AT THE SLEEVE ASSEMBLY POINT (BENDIX PN 10-320473). A PARTIAL TEARDOWN OF THE ENG REVEALED NO OTHER PREIMPACT MECHANICAL FAILURE.

Probable Cause:

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: NYC83FHD01
Status: Investigation completed
Duration:
Download report: Final report

Sources:

NTSB NYC83FHD01

Revision history:

Date/timeContributorUpdates
02-Apr-2024 06:52 ASN Update Bot Added

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2025 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314
www.FlightSafety.org