NYC99LA092

NTSB accident investigation · Saab-Scania 340B · Boston, MA · April 12, 1999

Accident · No injuriesLimited investigationFinal report
Date
April 12, 1999, 19:26 local (23:26 UTC)
Place
Boston, MA
Injuries
9 uninjured
Damage
Substantial damage
Phase of flight
Standing
Aircraft
N347BESaab-Scania 340B
Weather
Visual (VMC) · Day
Status
Completed · report April 18, 2001
Report
Approved by Office Director
FAA report
19990412045369A
Case key
46152

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The belt-loader driver's loss of control of the vehicle, and his failure to follow published procedures for approaching the airplane with the belt-loader.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Miscellaneous/otherStanding - engine(s) not operating
Fuselage,skin - cut/severed
Fuselage,stringer - cut/severed
Object - vehicle
Procedures/directives - not followedDriver of vehicleCause
Miscellaneous equipment - uncontrolledDriver of vehicleCause

Analysis

A baggage belt-loader struck the parked airplane in an area below the cargo door. The vehicle approached the airplane without stopping, and the driver jumped off just before the collision. At the time, the airplane's engines were secured, the wheels were chocked, the seat belt sign had been turned off, and the parking checklist had been completed. The passengers were standing, and the flight attendant was waiting for the signal to open the door. Ground support personnel checked the belt-loader braking system immediately after the collision and found no discrepancies. The airline had a published procedure in place, wherein the belt-loader driver was required to stop the vehicle 50 feet prior to the airplane, and again, at least 8 feet away from the airplane. The driver was then required to approach the airplane with the belt-loader at a 'creep' speed.

Factual narrative

On April 12, 1999, at 1926 Eastern Daylight Time, a Saab 340B, N347BE, operated as Business Express flight 6240, was substantially damaged when a baggage belt-loader sliced through a portion of the fuselage, in an area under the cargo door. The airplane had just been parked at the gate, at General Edward Lawrence Logan International Airport (BOS), Boston, Massachusetts. The two pilots, one flight attendant, and six passengers onboard were uninjured, as was the belt-loader driver. An instrument flight rules flight plan had been filed for the scheduled passenger flight, which arrived from Northern Maine Regional Airport (PQI), Presque Isle, Maine. The flight was conducted under 14 CFR Part 121.

According to the captain's statement, the airplane was parked and chocked, with the engines secured, when the belt-loader struck it. The airplane's seat belt sign had been turned off, and the parking checklist had been completed. The passengers were standing, and the flight attendant was waiting for the signal to open the door.

According to the airline's director of safety, the operator of the belt-loader drove the vehicle towards the airplane's cargo door area without stopping. As it approached the airplane, the driver jumped off the belt-loader, just before it impacted the fuselage. Ground support personnel checked the belt-loader braking system immediately after the collision, and found no discrepancies.

According to the airline's Ground Support Manual, "Any vehicle approaching an aircraft is required to stop 50 ft. (15 m.) away. Then, it will be eased up to within 8 ft. (2 m.) and again come to a stop. From that point, the driver will carefully creep up to the aircraft. Ground equipment aircraft strikes will be prevented by using this 'Fifty 'N Eight' stop - stop - creep technique."

Aircraft

Registration
N347BE
Reported as
Saab-Scania 340B
Category
Airplane
Serial number
187
Engine
GE CT7, 1,735 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 121
Registered owner
Business Express Airlines
Airworthiness certificate
Standard, Transport
Departed
PQI · Presque Isle, ME
Destination
BOS
Flight plan
IFR
Airport
BOS · Gen Edw Lwrnce Logan Intl

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
51
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
11,500 total · 3,500 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 18 °F
Altimeter
29.00 inHg
Observed at
BOS

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.