Ted Stevens Anchorage Internat Airport
Aircraft Accident/Incident Report

Anchorage, Alaska 99513
Saturday, December 23, 2006 21:45 AST

NTSB Narrative Summary Released at Completion of Accident

The flight crew departed on an instrument flight rules (IFR) non-scheduled domestic cargo flight under Title 14, CFR Part 121. When the cabin failed to pressurize during departure, the airplane returned to the airport. An FAA inspector who examined the airplane reported that maintenance personnel found a penetrating gouge in the right lower portion of the fuselage between the wing and tail, near the cargo door. The inspector indicated that the gouge was 18 inches long, 1 to 2 inches wide, with other, shallower surface skin damage about 3 feet long, and that the damage was consistent with the size and shape of the counter-balance weight on the truck used to deice the airplane.

NTSB Probable Cause Narrative

The failure of the deicing truck crew to maintain sufficient distance from the parked airplane during deicing, which resulted in a collision and substantial damage to the airplane.

Event Information

Type of Event Accident
Event Date 12/23/2006
Event Day of the Week Saturday
Time of Event 2145
Event Time Zone Atlantic Standard Time
Event City Anchorage
Event State ALASKA
Event Country --
Zipcode of the event site 99513
Event Date Year 2006
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 611028N
Event Location Longitude 1495947W
Event Location Airport Ted Stevens Anchorage Internat
Event Location Nearest Airport ID ANC
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 152
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 853 Atlantic Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID PANC
Elevation of weather observation facility 152
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation AST
Lighting Conditions Night/Dark
Lowest Ceiling Height 400
Lowest Non-Ceiling Height 400
Sky/Lowest/Cloud Conditions Partial Obscuration
Sky Condition for Lowest Ceiling Obscured
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 1
Air Temperature at event time (in degrees celsius) -7
Dew Point at event time (in degress fahrenheit) -5
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.42
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 21992
NTSB Notification Source FAA Anchorage, ROC
NTSB Notification Date Dec 24 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Aug 30 2007 12:18PM
User who most recently changed record NTSB\lema
Basic weather conditions Instrument Meteorological Cond
FAA District Office Achorage FSDO-03

Aircraft Involved

Aircraft #1

Aircraft Registration Number N752SA
NTSB Number ANC07LA008
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Boeing
Aircraft Model 747-228F
Aircraft Series Identifier --
Aircraft Serial Number 21255
Certified Max Gross Weight 820000
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 8
Number of Engines 4
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Dec 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours 121459
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SOUTHERN AIR INC
Aircraft Owner Street Address --
Aircraft Owner City Norwalk
Aircraft Owner State CT
Aircraft Owner Country USA
Aircraft Owner Zipcode 06850
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code Q2SA
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code PANC
Departure City Anchorage
Departure State AK
Departure Country USA
Departure Time --
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code DFW
Destination City Dallas
Destination State TX
Destination Country USA
Specific Phase of Flight Standing - engine(s) not operating
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 25 2007 1:53PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --