NTSB Identification: NYC84FA064.
The docket is stored on NTSB microfiche number 24211.
Nonscheduled 14 CFR operation of BLUE BELL, INC.
Accident occurred Sunday, January 01, 1984 in EAST BOSTON, MA
Aircraft: CANADAIR CL44D4, registration: N104BB
Injuries: 4 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT LANDED WITH THE RIGHT MAIN LANDING GEAR IN THE RETRACTED POSITION. THE CREW WAS UNABLE TO LOWER THE RIGHT MAIN GEAR BY THE NORMAL OR EMERGENCY METHODS. INSPECTION AFTER THE ACCIDENT REVEALED THAT THE MAIN HYDRAULIC LINE. PN 44-75087-98 WAS BROKEN COMPLETELY AROUND ITS CIRCUMFERENCE UNDER THE 'B' NUT AT THE BULKHEAD FITTING WHERE THE LINE ENTERS THE H2 ENGINE NACELLE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

LANDING GEAR,NORMAL RETRACTION/EXTENSION ASSEMBLY..INOPERATIVE

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

WHEELS UP LANDING..PERFORMED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

HYDRAULIC SYSTEM,LINE..FAILURE,TOTAL

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

LANDING GEAR,EMERGENCY EXTENSION ASSEMBLY..INOPERATIVE

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