ANC97LA056

NTSB accident investigation · Boeing 747-400 · Anchorage, AK · April 12, 1997

Accident · No injuriesLimited investigationFinal report
Date
April 12, 1997, 09:00 local (17:00 UTC)
Place
Anchorage, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
VRHUKBoeing 747-400
Weather
Visual (VMC) · Day
Status
Completed · report November 10, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
2989

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

An in-flight collision with a large bird.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectApproach
Object - bird(s)Cause

Analysis

A foreign registered, international cargo flight, operated under Title 14 CFR Part 129, landed during visual meteorological conditions. After taxiing to parking, the crew noticed damage to the left wing. Examination of the damage revealed evidence of a large bird strike. The leading edge of the left wing, about 2 feet outboard of the number 2 engine, was dented and buckled. Several rivets were broken, and the leading edge spar was damaged. A small portion of upper wing composite material was missing. The crew indicated no bird impact was noticed during the landing approach. The landing lights were utilized during the approach. The airport's automatic terminal information service (ATIS) included a caution about birds in the vicinity of the airport.

Factual narrative

On April 12, 1997, about 0900 Alaska daylight time, a Cathay Pacific Airways Boeing 747-400, VR-HUK, struck a large bird during the approach phase of flight into the Anchorage International Airport, Anchorage, Alaska. The airplane was being operated as an instrument flight rules (IFR) international cargo flight under Title 14 CFR Part 129 when the accident occurred. The airplane, operated as flight CX-084, sustained substantial damage. The captain and first officer, and two relief crew members, were not injured. Visual meteorological conditions prevailed. The flight originated at the Hong Kong International Airport, on a local date of April 12, 1997, at 1556. The stop in Anchorage was part of a continuing flight to Toronto, Canada.

A Federal Aviation Administration (FAA) airworthiness inspector, Anchorage Flight Standards District Office (FSDO), reported the airplane landed and taxied to a parking spot without the crew having any knowledge of a bird strike. A postflight inspection of the airplane revealed an impact with the leading edge of the left wing, about 2 feet outboard of the number 2 engine. The inspector reported the leading edge of the wing was dented and buckled, several rivets were broken, and the leading edge spar was damaged. A small portion of upper wing composite material was missing.

In the pilot/operator report (NTSB form 6120.1/2) submitted by the operator, the crew indicated no bird impact was noticed during the landing approach. The landing lights were utilized during the approach. The airport's automatic terminal information service (ATIS) included a caution about birds in the vicinity of the airport.

Aircraft

Registration
VRHUK
Reported as
Boeing 747-400
Category
Airplane
Engine
Rolls-Royce RB211-524G, 58,000 lbs thrust, turbo fan
Damage
Substantial damage
Flight
Part 129
Registered owner
Cathay Pacific Airways Ltd.
Airworthiness certificate
Standard, Transport
Departed
HKG · Hong Kong
Destination
ANC
Flight plan
IFR
Airport
ANC · Anchorage International

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
12,526 total · 3,015 in this make and model · 9,251 as pilot in command · 95 in the last 90 days · 54 in the last 30 days · 9 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
90 statute miles
Lowest ceiling
None
Temperature
36 °F
Altimeter
29.00 inHg