ANC02LA079

NTSB accident investigation · de Havilland DHC-6 · Toksook Bay, AK · July 13, 2002

Accident · No injuriesLimited investigationFinal report
Date
July 13, 2002, 10:26 local (18:26 UTC)
Place
Toksook Bay, AK
Injuries
13 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N885EAde Havilland DHC-6
Weather
Visual (VMC) · Day
Status
Completed · report April 29, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA Anchorage FSDO-03
FAA report
20020713026049A
Case key
55248

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

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Probable cause

A bird strike during takeoff, which resulted in damage to the right wing.

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 objectTakeoff - initial climb
Object - bird(s)Cause

Analysis

The scheduled air carrier flight had just lifted off the runway and started to climb, when it encountered a flock of birds. One or more of the birds struck the right wing of the airplane. The airplane continued to its destination, and landed without incident. About 6 feet of the right wing's leading edge, and 2 wing ribs were replaced due to the bird strike.

Factual narrative

On July 13, 2002, about 1026 Alaska daylight time, a de Havilland DHC-6 airplane, N885EA, sustained substantial damage when it struck a bird during takeoff from Toksook Bay Airport, Toksook, Alaska. The airplane was being operated by ERA Aviation Inc., of Anchorage, Alaska, as Flight 4862, a visual flight rules (VFR) scheduled passenger flight under Title 14, CFR Part 121, at the time of the accident. The two crewmembers and the eleven passengers were not injured. The airplane was departing Toksook Bay en route to Bethel, Alaska. Visual meteorological conditions prevailed, and an IFR flight plan was filed.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on July 16, a Federal Aviation Administration (FAA) air safety inspector said he had issued a ferry permit for the accident airplane to return to the ERA maintenance facility in Anchorage. He said he inspected the damage to the accident airplane, and noted the repairs required the replacement of two ribs, and six feet of the leading edge of the right wing.

During a telephone conversation with the IIC on July 23, the director of operations for the operator said the pilot told him that during the initial climb, about 20 feet above the runway, the airplane encountered a flock of seagulls. The pilot told him that one of the seagulls struck the leading edge of the airplane's right wing. He said the airplane continued to its destination without further incident. The director of operations said he was only aware of one rib, and about six feet of the leading edge, being replaced as a result of the accident.

Aircraft

Registration
N885EA
Reported as
de Havilland DHC-6
Category
Airplane
Serial number
454
Airframe hours
20,261
Engine
Pratt & Whitney PT6-27, 680 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 121
Registered owner
Era Aviation Inc
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · June 27, 2002 · 144 hours before
Departed
OOK · Toksook Bay, AK
Destination
BET · Bethel, AK
Flight plan
VFR
Airport
OOK · Toksook Bay, runway 15, 1,800 × 55 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
31
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
May 18, 2002
Seat
Left
Flight hours
3,584 total · 2,420 in this make and model · 1,785 as pilot in command · 251 in the last 90 days · 98 in the last 30 days · 5 in the last 24 hours
Role
Co-pilot
Age
29
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
December 30, 2001
Seat
Right
Flight hours
2,200 total · 1,650 in this make and model · 450 as pilot in command · 180 in the last 90 days · 60 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 13 knots
Visibility
2.5 statute miles
Lowest ceiling
1,300 ft broken
Temperature
54 °F, dew point 48 °F
Altimeter
29.56 inHg
Observed at
PAMY

Docket · 2

The files NTSB released with the investigation on February 6, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 717 KB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.