ASN logo
ASN Wikibase Occurrence # 38364
Last updated: 26 February 2020
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:11-AUG-1984
Time:13:10
Type:Silhouette image of generic S76 model; specific model in this crash may look slightly different
Sikorsky S-76A
Owner/operator:Capital Equipment Associates
Registration: N63WW
C/n / msn: 760188
Fatalities:Fatalities: 1 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Fort Dix, NJ -   United States of America
Phase: En route
Nature:Executive
Departure airport:Morristown, NJ (MMU)
Destination airport:Atlantic, NJ (AIY)
Investigating agency: NTSB
Narrative:
THE AIRCREW OF THE HELICOPTER CONTACTED MCGUIRE RAPCON & OBTAINED CLEARANCE TO PROCEED THRU THE MCGUIRE AFB CONTROL ZONE AT 1500 FT. A SHORT TIME LATER, THE CREW DECLARED AN EMERGENCY. WITNESSES ON THE GROUND HEARD A LOUD 'BANG' & OBSERVED THE HELICOPTER SUDDENLY LOSE ALT. THE HELICOPTER RECOVERED FROM THE DESCENT & BEGAN A TURN TOWARD RWY 6/24 AT MCGUIRE AFB, THEN IT VEERED SHARPLY TO THE RIGHT & CRASHED INTO WOODED TERRAIN ON FT DIX. TREES AT THE ACCIDENT SITE WERE DAMAGED AT AN 80 DEG ANGLE FROM THE HORIZON. FIRE IN THE AREA OF THE ENGS WAS EXTINGUISHED WITH HALNON 1211 & AFFF AGENTS. AN EXAM REVEALED EVIDENCE OF A LEFT ENG FAILURE. THERE WERE INDICATIONS THAT FRAGMENTS FROM THE LEFT ENG TURBINE HAD IMPACTED THE RGT ENG WHILE IT (THE RGT ENG) WAS PRODUCING POWER. ONE OF THE TAIL ROTOR CONTROL CABLES & THE TAIL ROTOR DRIVE SHAFT WERE SEVERED IN THE AREA OF THE RGT ENG. A METALURGICAL CHECK REVEALED INDICATIONS OF HI CYCLIC FATIGUE OF THE 2ND STAGE GAS PRODUCER TURBINE WHEEL IN THE CURVIC COUPLING & LABYRINTH SEAL AREA. CAUSE:

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X40891


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
12-Jun-2010 09:33 TB Updated [Other fatalities]
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

Corrections or additions? ... Edit this accident description