19990222030639A

Accident · Substantial damage

FAA accident report · Boeing 7572Y0 · Covington/Cinci, KY · February 22, 1999

Date
February 22, 1999 · 14:55 local
Place
Covington/Cinci, KY
Airport
Cincinnati/Northern Kentucky I
Phase of flight
To Init Climb(1st Pwr Reduct)
Operating rules
Air carrier (Part 121)
Operator
DALA
Damage
Substantial damage
Aircraft
N682DA
NTSB investigation
NTSBNYC99LA064
Reported as
Boeing 7572Y0
Reported engine
Pratt & Whitney PW2037
People aboard
132
Fatal injuries
0
Pilot’s flight hours
18,000 total2,771 in this make and model156 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(.4) The airplane pushed back from the gate, and taxied to runway 18L. While taxing, the crew heard no mention of a bird hazard by another aircraft or ATC. The takeoff roll was normal until passing approximately 150 knots; at that point, a flock of birds traveling from left to right passed in front of the airplane. The captain advised the first officer of the hazard, and asked him to climb over the flock. The first officer increased pitch angle, but the airplane still penetrated the flock. At the time of penetration, the nose wheel was in the air, and the main landing gear was just becoming airborne. The airplane returned to the airport without further incident. At the time of impact, N1 on the left engine dropped from 81.88 percent to 56.00 percent, and on the right engine, it dropped from 81.25 to 71.63 percent. In both cases, throttle positions remained constant. The bird's roost was not identified, and no airport procedures contributing to the accident were observed. Starlings comprised 5 percent of all the damaging animal strikes to U.S. Aircraft from 1993 to 1995. (-23)struck a flock of birds on take-off from cvg. Returned to cvg landed without incident . Extensive damage to #1&2 engine.

As the FAA filed it

(.4) THE AIRPLANE PUSHED BACK FROM THE GATE, AND TAXIED TO RUNWAY 18L. WHILE TAXING, THE CREW HEARD NO MENTION OF A BIRD HAZARD BY ANOTHER AIRCRAFT OR ATC. THE TAKEOFF ROLL WAS NORMAL UNTIL PASSING APPROXIMATELY 150 KNOTS; AT THAT POINT, A FLOCK OF BIRDS TRAVELING FROM LEFT TO RIGHT PASSED IN FRONT OF THE AIRPLANE. THE CAPTAIN ADVISED THE FIRST OFFICER OF THE HAZARD, AND ASKED HIM TO CLIMB OVER THE FLOCK. THE FIRST OFFICER INCREASED PITCH ANGLE, BUT THE AIRPLANE STILL PENETRATED THE FLOCK. AT THE TIME OF PENETRATION, THE NOSE WHEEL WAS IN THE AIR, AND THE MAIN LANDING GEAR WAS JUST BECOMING AIRBORNE. THE AIRPLANE RETURNED TO THE AIRPORT WITHOUT FURTHER INCIDENT. AT THE TIME OF IMPACT, N1 ON THE LEFT ENGINE DROPPED FROM 81.88 PERCENT TO 56.00 PERCENT, AND ON THE RIGHT ENGINE, IT DROPPED FROM 81.25 TO 71.63 PERCENT. IN BOTH CASES, THROTTLE POSITIONS REMAINED CONSTANT. THE BIRD'S ROOST WAS NOT IDENTIFIED, AND NO AIRPORT PROCEDURES CONTRIBUTING TO THE ACCIDENT WERE OBSERVED. STARLINGS COMPRISED 5 PERCENT OF ALL THE DAMAGING ANIMAL STRIKES TO U.S. AIRCRAFT FROM 1993 TO 1995. (-23)STRUCK A FLOCK OF BIRDS ON TAKE-OFF FROM CVG. RETURNED TO CVG LANDED WITHOUT INCIDENT . EXTENSIVE DAMAGE TO #1&2 ENGINE.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.