ANC99LA113

NTSB accident investigation · Piper PA-18 · Anchorage, AK · August 14, 1999

Accident · No injuriesLimited investigationFinal report
Date
August 13, 1999, 17:05 local (Aug 14, 1999, 01:05 UTC)
Place
Anchorage, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1386APiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report January 18, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19990813012039A
Case key
47159

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

The pilot's inadequate compensation for wind conditions during takeoff. A factor was a crosswind, and an inadvertent ground loop.

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.

On ground/water encounter with weatherTakeoff - roll/run
Weather condition - crosswindFactor
Compensation for wind conditions - inadequatePilot in commandCause
Loss of control - on ground/waterTakeoff - roll/run
Ground loop/swerve - inadvertentPilot in commandFactor

Analysis

The private certificated pilot was beginning a cross-country flight on runway 32. The pilot said a left crosswind condition existed, and during the takeoff roll, he utilized 2 notches of flaps. During the takeoff, the left wing began to rise, and the airplane veered to the right. The airplane ground looped to the right, and the left wing struck the runway, receiving spar damage. The wind condition at the airport was 215 degrees (magnetic) at 7 knots.

Factual narrative

On August 13, 1999, about 1705 Alaska daylight time, a tundra tire equipped Piper PA-18 airplane, N1386A, sustained substantial damage during takeoff from the Anchorage International Airport, Anchorage, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred. The airplane was operated by the pilot. The private certificated pilot, and the sole passenger, were not injured. Visual meteorological conditions prevailed. A VFR flight plan was filed for Igiugig, Alaska, but not activated.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on August 16, 1999, the pilot reported he was beginning a takeoff roll on runway 32. He said a left crosswind condition existed at the time. He utilized 2 notches of flaps for the takeoff. During the takeoff roll, the left wing began to rise, and the airplane veered to the right. The airplane ground looped to the right, and the left wing struck the runway. The pilot said the left wing received spar damage.

At 1718, an Aviation Routine Weather Report (METAR), Anchorage International Airport, was reporting in part: Wind, 215 degrees (magnetic) at 7 knots; visibility, 10 statute miles; clouds and sky condition, few at 2,000 feet; temperature, 64 degrees F; dew point, 51 degrees F; altimeter, 29.84 inHg.

Aircraft

Registration
N1386A
Reported as
Piper PA-18
Category
Airplane
Serial number
18-1219
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
James T. Ables
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 13, 1999 · 0 hours before
Destination
IGG · Igiugig, AK
Flight plan
VFR
Airport
PANC · Anchorage International, runway 32, 10,496 × 150 ft, asphalt

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
50
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
625 total · 625 as pilot in command · 15 in the last 90 days · 4 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
215° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 52 °F
Altimeter
29.00 inHg
Observed at
PAN

FAA reports on this event · 1

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

Other investigations on N1386A · 3

Matched to the same aircraft by N-number and date.