Date: | Thursday 29 July 1999 |
Time: | 15:00 |
Type: | Boeing 747-269B |
Owner/operator: | Kitty Hawk International |
Registration: | N707CK |
MSN: | 21541/332 |
Year of manufacture: | 1978 |
Total airframe hrs: | 59727 hours |
Engine model: | Pratt & Whitney JT9D-7J |
Fatalities: | Fatalities: 0 / Occupants: 5 |
Aircraft damage: | Substantial, repaired |
Category: | Accident |
Location: | near Anchorage International Airport, AK (ANC) -
United States of America
|
Phase: | En route |
Nature: | Cargo |
Departure airport: | Anchorage International Airport, AK (ANC/PANC) |
Destination airport: | Bangkok-Don Muang International Airport (BKK/VTBD) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:A Boeing 747-269B airplane, N707CK, had an uncontained engine failure during climb-out from the Anchorage International Airport, Alaska. There were no injuries to the five crewmembers aboard.
During climbout, the Boeing 747 crew noted a loud 'thump,' followed by a change in the number three engine instrument indications. One crewmember noted there was a fist-sized hole in the side of the engine cowling. The captain shut down the number three engine, returned to the departure airport, and landed without further incident. A post landing inspection revealed that the inboard aileron sustained substantial damage.
PROBABLE CAUSE: "The failure of a turbine blade, and subsequent penetration of the shroud (containment ring). A factor associated with the accident was the FAA's insufficient design standards/requirements addressed in an FAA Airworthiness Directive, which called for a strengthened containment ring. The failed containment ring was in compliance with the Air Worthiness Directive."
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ANC99LA099 |
Status: | Investigation completed |
Duration: | 1 year and 11 months |
Download report: | Final report |
|
Sources:
NTSB id 20001212X19142
History of this aircraft
Other occurrences involving this aircraft
22 March 1997 |
N707CK |
American International Airways |
0 |
Manaus, |
|
min |
Revision history:
Date/time | Contributor | Updates |
The Aviation Safety Network is an exclusive service provided by:
CONNECT WITH US:
©2024 Flight Safety Foundation