Boeing 737-200 N672MA

Summary

On 13 February 1991 at about 16:39 local time, a Boeing 737-200 registered N672MA, operated by Markair, Inc., was involved in an incident near Unalaska, Alaska, United States. 46 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

13 February 1991 at 16:39

Classification

Incident

Location

Unalaska, Alaska, United States

Nearest airport

Unalaska (DUT)

Coordinates

53.8908, -166.5402

Aircraft

Boeing 737-200

Registration

N672MA

Category

Airplane

Engines

2

Operator

Markair, Inc.

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Anchorage → Unalaska

Aircraft damage

Minor

Weather

VMC

Light

Day

NTSB number

ANC91IA028

Nobody was injured.

THE WINDSHEAR ENCOUNTERED ON SHORT FINAL. CONTRIBUTING TO THE ACCIDENT WAS THE RISING TERRAIN WITHIN 150 FEET OF THE RUNWAY, THE VARIABLE NATURE OF THE WIND DUE TO THE RISING TERRAIN, AND THE PILOT'S FAILURE TO MAINTAIN LATERAL CONTROL DURING THE GO AROUND.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE RUNWAY ALIGNS FROM THE SOUTHEAST TO THE NORTHWEST AND WITHIN 150 FEET EAST OF THE RUNWAY IS A 1,634 FOOT HIGH MOUNTAIN. THE WIND WAS FROM THE NORTHWEST AT 14 KNOTS, GUSTING TO 25 KNOTS. THE LANDING THRESHOLD FOR RUNWAY 30 WAS DIRECTLY DOWNWIND OF THE MOUNTAIN. DURING THE FINAL APPROACH, THE FIRST OFFICER NOTICED A PLUS 30 KNOT DEVIATION IN THE AIRSPEED AND CALLED FOR THE CAPTAIN TO INITIATE A GO AROUND. THE CAPTAIN HAD ALREADY APPLIED POWER WHEN THE AIRPLANE BEGAN TO SINK AND ROLL TO THE RIGHT. THE RIGHT WING TIP SCRAPED THE RUNWAY SURFACE DURING THE GO AROUND.

Quoted verbatim from the NTSB record.