Individually Owned: 150,657
Corporate Owned: 137,281
Long Beach/Daugherty Field/ Airport
Aircraft Accident/Incident Report
Long Beach, California 90712
Sunday, August 20, 2006 18:09 PDT
NTSB Narrative Summary Released at Completion of Accident
While taxiing to parking following a normal landing, the cabin crew notified the flight crew that an electrical smelling smoke was engulfing the cabin area. The flight crew simultaneously heard circuit breakers popping and cabin chimes sounding. The flight crew decided that at an immediate evacuation was necessary, and stopped the airplane. The order was given to the cabin crew to deploy the emergency slides and evacuate the passengers. All emergency slides were deployed; there were no injuries incurred during the evacuation. Maintenance personnel noted minor damage to the airplane as a result of a chaffed wire bundle in the mid-cargo pit ceiling at station 750 that had arced and produced smoke in the cabin area. The area was identified as a Boeing-designed and retrofitted over wing heater wiring installation. Engineers for the operator and manufacturer of the airplane determined that arcing was likely due to the left and right over wing heater blanket wiring, that contacted the edge of the wire bundle bracket that attached to the second inboard lighting hole at station 750 in the mid-cargo pit ceiling on the left side. They also determined that the vibration through normal airplane operation allowed the bracket to cut through the wire insulation and then contact was made to the wire conductor and arcing occurred. The operator inspected their entire fleet of affected airplanes and noted one other wire bundle discrepancy. The manufacturer of the airplane identified one other operator with a similar configuration. A service bulletin was issued identifying the problem and provided instructions on adjusting the wire bundles in order to prevent future occurrences.
NTSB Probable Cause Narrative
The over wing heater blanket wiring installation that had chaffed and arced, which produced an electrical smell in the cabin area.
Event Information
| Type of Event | Incident |
| Event Date | 8/20/2006 |
| Event Day of the Week | Sunday |
| Time of Event | 1809 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Long Beach |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 90712 |
| Event Date Year | 2006 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 334906N |
| Event Location Longitude | 1180910W |
| Event Location Airport | LONG BEACH/DAUGHERTY FIELD/ |
| Event Location Nearest Airport ID | LGB |
| 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 | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1753 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | LGB |
| Elevation of weather observation facility | 90 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 23 |
| Dew Point at event time (in degress fahrenheit) | 14 |
| Wind Direction (degrees magnetic) | 300 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 11 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.87 |
| 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 | 145 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 22714 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Aug 20 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Dec 20 2007 6:59AM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | WP-LGB-FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N944AS |
| NTSB Number | LAX06IA301 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | McDonnell Douglas |
| Aircraft Model | DC-9-83 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 53019 |
| Certified Max Gross Weight | 160000 |
| 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 | 172 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Wells Fargo Bank Northwest NA Trustee |
| Aircraft Owner Street Address | 200 S Main Street 12th Floor |
| Aircraft Owner City | Salt Lake City |
| Aircraft Owner State | UT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 84111 |
| Operator is an individual? | No |
| Operator Name | Alaska Airlines, Inc. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Seattle |
| Operator State | WA |
| Operator Country | USA |
| Operator Zip code | -- |
| Operator Code | ASAA |
| 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 | Scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | SEA |
| Departure City | Seattle |
| Departure State | WA |
| Departure Country | USA |
| Departure Time | 1630 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | LGB |
| Destination City | Long Beach |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | Taxi - from landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Nov 28 2007 4:23PM |
| User who most recently changed record | COOS |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |