Individually Owned: 150,657
Corporate Owned: 137,281
Anchorage International Airport
Aircraft Accident/Incident Report
Anchorage, Alaska 99502
Tuesady, July 29, 2008 10:21 AKD
NTSB Narrative Summary Released at Completion of Accident
During the takeoff roll, the flight crew of the 14 Code of Federal Regulations Part 121 scheduled passenger flight heard a "pop" coming from the left engine. The takeoff was aborted and the airplane returned to the gate. Maintenance personnel noted that the left engine had a contained engine failure. During the manufacturer's inspection of the engine, they noted that one of the stage 1 gas generator rotor blades had separated below the airfoil platform as a result of high-cycle fatigue. The manufacturer reported that the failure is related to a blade damper binding issue that has been tracked since 2001; Service Bulletin (SB) 72-0475 was issued to address the gas generator rotor blade damper. The manufacturer also recommended that all operators who have not complied with the SB lower the borescope inspection for the hot section from 800 to 400 flight hours. The manufacturer says that to date 95 percent of the affected fleet comply with the SB. The incident engine had been borescoped within the last 400 hours.
NTSB Probable Cause Narrative
The failure of one of the stage 1 gas generator rotor blades due to high-cycle fatigue, resulting in a contained engine failure during the takeoff roll.
Event Information
| Type of Event | Incident |
| Event Date | 7/29/2008 |
| Event Day of the Week | Tuesday |
| Time of Event | 1021 |
| Event Time Zone | -- |
| Event City | Anchorage |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99502 |
| Event Date Year | 2008 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 611046N |
| Event Location Longitude | 1495900W |
| Event Location Airport | Anchorage International |
| 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 | 953 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | ANC |
| Elevation of weather observation facility | 152 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 20000 |
| Lowest Non-Ceiling Height | 500 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 12 |
| Dew Point at event time (in degress fahrenheit) | 10 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.69 |
| 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 | 9 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 24851 |
| NTSB Notification Source | FAA Anchorage, ROC |
| NTSB Notification Date | Jul 30 2008 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jan 26 2009 1:42PM |
| User who most recently changed record | grol |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | FAA-ANC-FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N364PX |
| NTSB Number | ANC08IA092 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | No |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Saab-Scania AB (Saab) |
| Aircraft Model | SAAB 340B |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 340B-262 |
| Certified Max Gross Weight | 29000 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 2 |
| Cabin Crew Seats | 1 |
| Passenger Seats | 30 |
| Total number of seats on the aircraft | 33 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | 397 |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Turbo Lease |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Hyannis |
| Aircraft Owner State | MA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 02601 |
| Operator is an individual? | No |
| Operator Name | PENINSULA AIRWAYS INC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 4451 Aircraft Drive |
| Operator City | Anchorage |
| Operator State | AK |
| Operator Country | USA |
| Operator Zip code | 99502 |
| Operator Code | PNSA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| 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 | Yes |
| Departure Airport Code | ANC |
| Departure City | Anchorage |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1021 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | ANI |
| Destination City | Aniak |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | Takeoff - roll/run |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 29 2008 2:26PM |
| User who most recently changed record | stam |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 07R |
| Runway Length | 10900 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |