Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Las Vegas, Nevada 89119
Thursday, April 19, 2001 9:48 PDT
NTSB Narrative Summary Released at Completion of Accident
One flight attendant in the aft galley was seriously injured and four others aboard the air carrier flight received minor injuries when the airplane encountered moderate to severe clear air turbulence in cruise at flight level 310 (FL310, 31,000 feet). About 30 minutes before the turbulence was encountered, the company flight dispatcher communicated to the flight crew that the flight was approaching an area of forecast moderate to severe turbulence associated with mountain wave activity between FL310 and FL390 (39,000 feet). The dispatcher recommended that the flight alter course and descend to FL280 (28,000 feet). Eighteen minutes before the turbulence was encountered the pilot requested a "ride report" at FL310 from air traffic control and was told to expect "occasional light chop, nothing real bad." The pilot remained at FL310 and remained on the existing routing. Approaching the area of forecast turbulence, he illuminated the seat belt sign and advised the passengers of the potential for turbulence. He also advised the flight attendants to stow the galley equipment. Approximately 3 to 4 minutes later, the flight encountered turbulence. The injured flight attendant was one of two in the aft galley. The other flight attendant reported that when the turbulence started they were "jolted" a couple of times during which she recalled her feet came off the floor and then the turbulence subsided. They "scrambled" toward their jumpseats; however, they encountered additional, more severe, turbulence and it became impossible to hold onto anything. She recalled being thrown about the galley; hitting the ceiling, counters, and doors before being "slammed" to the floor. When the turbulence ceased, the flight descended to flight level 280 and continued to its intended destination without further incident. The airplane's digital flight data recorder showed the aircraft encountered three vertical acceleration excursions between 1.449 g's and -0.379 g's over a 16-second period.
NTSB Probable Cause Narrative
The failure of the pilot-in-command to properly evaluate a hazardous weather advisory and his failure to adequately alter course and flight altitude to avoid the area of hazardous weather.
Event Information
| Type of Event | Accident |
| Event Date | 4/19/2001 |
| Event Day of the Week | Thursday |
| Time of Event | 948 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Las Vegas |
| Event State | NEVADA |
| Event Country | -- |
| Zipcode of the event site | 89119 |
| Event Date Year | 2001 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 953 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 45 |
| Weather Observation Facility ID | RTN |
| Elevation of weather observation facility | 6352 |
| Distance of event from weather observation facility (units?) | 30 |
| Time Zone of the weather observation | MST |
| 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) | 22 |
| Dew Point at event time (in degress fahrenheit) | -4 |
| Wind Direction (degrees magnetic) | 290 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 20 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 29 |
| Altimeter Setting at event time (in. Hg) | 29.91 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 4 |
| Injury Total None | 121 |
| Injury Total Serious | 1 |
| Injury Total All | 5 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11333 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Apr 19 2001 12:00AM |
| NTSB Notification Time | 1145 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 23 2002 7:13AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Las Vegas, Nevada |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N654AW |
| NTSB Number | LAX01LA136 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Airbus Industrie |
| Aircraft Model | A320-232 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 1050 |
| Certified Max Gross Weight | 169754 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 158 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Mar 21 2001 12:00AM |
| Airframe hours since last inspection | 333 |
| Airframe Hours | 7092 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | America West Airlines, Inc. |
| Aircraft Owner Street Address | 4000 E. Sky Harbor Blvd. |
| Aircraft Owner City | Phoenix |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 85034 |
| 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 | AWXE |
| 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 | JFK |
| Departure City | New York |
| Departure State | NY |
| Departure Country | USA |
| Departure Time | 858 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | LAS |
| Destination City | Las Vegas |
| Destination State | NV |
| Destination Country | USA |
| Specific Phase of Flight | Cruise - normal |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Jan 3 2002 5:22PM |
| User who most recently changed record | COOS |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |