ANC06IA054

NTSB incident investigation · McDonnell Douglas MD-83 · Fairbanks, AK · May 18, 2006

Incident · No injuriesIncident investigationFinal report
Date
May 18, 2006, 14:27 local (22:27 UTC)
Place
Fairbanks, AK
Injuries
145 uninjured
Damage
Minor damage
Phase of flight
Approach
Aircraft
N949ASMcDonnell Douglas MD-83
Weather
Visual (VMC) · Day
Status
Completed · report June 27, 2007
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration, Alaska Airlines
FAA report
20060518009919I
Case key
63711

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

On this page

Probable cause

The flightcrew's delayed go-around during an unstabilized approach to land, which resulted in dragging a wingtip on the runway during the go-around. A factor associated with the incident was the flightcrew's unstabilized approach.

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.

Dragged wing,rotor,pod,float or tail/skidGo-around (vfr)
Go-around - delayedFlightcrewCause
ContinuedFlightcrewFactor
Terrain condition - runway

Analysis

A McDonnell Douglas MD-83 airplane sustained minor damage to the right wingtip while landing, following an unstabilized approach. The captain reported that the first officer was initially flying a VOR approach to runway 19R, which requires a left turn to align the airplane with the runway centerline before touchdown. During the initial part of the approach, intermittent instrument meteorological conditions (IMC) prevailed, but as the approach continued, the airplane descended below the scattered cloud deck, and entered visual meteorological conditions. The captain said that the first officer asked if he could continue the VOR approach to runway 19R for proficiency proposes, and the captain agreed. As the airplane continued towards the airport, the captain noticed that the precision approach path indicator lights for runway 19L appeared to be on full bright. The captain's written statement to the NTSB stated, in part: "The first officer initially saw runway 19L while still above the MDA [minimum descent altitude] and 3 miles from the field. I pointed out runway 19R. While maneuvering to line up on the runway, we overshot." As the airplane passed over the approach end of the runway, it was to the left of the runway centerline, and the first officer applied right aileron control to correct the misalignment. The captain then gave the order to go-around, and takeoff engine power was applied, but the airplane's descent continued, and the right wing struck the runway as the main landing gear wheels contacted the runway. There were no preincident mechanical anomalies reported by the operator or flightcrew.

Factual narrative

On May 18, 2006, about 1427 Alaska daylight time, a McDonnell Douglas MD-83 airplane, N949AS, sustained minor damage to the right wingtip while landing at the Fairbanks International Airport, Fairbanks, Alaska. The flight was being conducted under Title 14, CFR Part 121, as a scheduled domestic passenger flight, operated by Alaska Airlines, Inc., as Flight 99. There were no injuries to the two pilots, three flight attendants, or the 140 passengers aboard. Visual meteorological conditions prevailed, and an instrument flight plan had been filed for the flight from Anchorage, Alaska.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge on May 22, the captain reported that the first officer was initially flying a VOR approach to runway 19R. During the initial part of the approach, intermittent instrument meteorological conditions (IMC) prevailed, but as the approach continued, the airplane descended below the scattered cloud deck, and entered visual meteorological conditions (VMC). The captain said that the first officer asked if he could continue the VOR approach to runway 19R for proficiency proposes, and the captain agreed. He said that as the airplane continued towards the airport, he noticed that the precision approach path indicator (PAPI) lights for runway 19L appeared to be on full bright. The captain also noted that the VOR approach to runway 19R has a 30-degree offset from the runway centerline, which requires a left turn to align the airplane with the runway centerline before touchdown.

According to the captain's written statement included with the NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) submitted by the operator, the captain wrote, in part: "The first officer initially saw runway 19L while still above the MDA [minimum descent altitude] and 3 miles from the field. I pointed out runway 19R. While maneuvering to line up on the runway, we overshot."

The captain said that as the airplane passed over the approach end of the runway, it was to the left of the runway centerline, and the first officer applied right aileron control to correct the misalignment. The captain then gave the order to go-around, and takeoff engine power was applied, but the airplane's descent continued, and the right wing struck the runway as the main landing gear wheels contacted the runway.

The flight crew was initially unaware that the wing had struck the runway until a flight attendant, seated in the rear of the airplane, informed them. After the go-around, the flight crew declared an emergency, and made an uneventful landing on runway 19R. There were no preincident mechanical anomalies reported by the operator or flightcrew.

The closest official weather observation station is located at the Fairbanks International Airport. On May 18, at 1353, an Aviation Routine Weather Report (METAR) was reporting in part: Sky conditions and ceiling, 2,300 feet broken, 4,800 feet broken, 10,000 feet broken; visibility, 10 statute miles; wind, 250 degrees at 6 knots; temperature, 50 degrees F; dew point 43 degree F.

Aircraft

Registration
N949AS
Reported as
McDonnell Douglas MD-83
Category
Airplane
Serial number
53022
Airframe hours
49,765.4
Engine
Pratt & Whitney JT8D-217A, 20,000 lbs thrust, turbo fan
Damage
Minor damage
Flight
Part 121
Operator
Alaska Air Group, doing business as Alaska Airlines
Registered owner
Wells Fargo Bank NW
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · May 1, 2006 · 135 hours before
Departed
ANC · Anchorage, AK
Destination
FAI · Fairbanks, AK
Flight plan
IFR
Airport
FAI · Fairbanks Intl, runway 19R, 11,800 × 150 ft, asphalt

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
44
Injuries
None
Certificates
Flight engineer, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
August 1, 2005
Seat
Left
Flight hours
10,329 total · 4,583 in this make and model · 168 in the last 90 days
Role
Co-pilot
Age
48
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
October 1, 2005
Seat
Right
Flight hours
9,190 total · 6,344 in this make and model · 159 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 6 knots
Visibility
10 statute miles
Lowest ceiling
2,300 ft broken
Temperature
50 °F, dew point 43 °F
Altimeter
29.90 inHg
Observed at
FAI

FAA reports on this event · 1

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