Canadair CL44D4 accident near East Boston, Massachusetts, January 2, 1984
On January 2, 1984, a Canadair CL44D4, registered N104BB, was substantially damaged in an accident near East Boston, Massachusetts (Logan Int'L airport). It was a flight of an unrecorded kind under scheduled airline rules (Part 121). No one was hurt; 4 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- January 2, 1984
- Place
- East Boston, Massachusetts · Logan Int'L
- Type
- Accident
- Injuries
- No one was hurt; 4 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Canadair CL44D4
- Registration
- N104BB · no longer on the register · serial 24
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · scheduled airline rules (Part 121)
The NTSB's narrative final · quoted from the NTSB record
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 complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 13,173 hours in all; 6,076 in this make and model
- Medical certificate: Class 1 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 47,039 hours
- Last inspection: approved inspection programme, December 16, 1983; 120 hours since
- Maximum gross weight: 210,000 lb
- Seats: 4
- Landing gear: retractable
- Engine: Rolls-Royce TYNE 515 (turboprop); 0 hours total
- Operator: Blue Bell, INC.
The flight
- Departed from: MJBQ Aguadilla PR at 6:44 pm
- Destination: ORH Worcester MA
- Flight plan: IFR
- Runway 4L, 7,860 ft by 150 ft
- A second pilot was aboard
Weather at the time
- Light: night, dark
- Wind: from 020° at 9 knots
- Visibility: 12 statute miles
- Sky: overcast at 2,700 ft; not recorded
- Temperature: 27°F (-3°C), dew point 12°F (-11°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 4 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N104BB the same tail number, which may have belonged to a different aircraft at the time
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.