ANC14LA056

NTSB accident investigation · Piper PA-22 · Dillingham, AK · July 28, 2014

Accident · No injuriesLimited investigationFinal report
Date
July 28, 2014, 15:45 local (23:45 UTC)
Place
Dillingham, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8883CPiper PA-22
Defining event
Landing-landing roll: Abrupt maneuver
Weather
Visual (VMC) · Day
Status
Completed · report January 14, 2015
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration; ANC FSDO
FAA report
20140728015199A
Case key
89774

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 failure to maintain directional control during the landing due to his decision to attempt a landing with a quartering tailwind, which resulted in a ground loop and impact with the runway surface.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-22: 9 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-22: 12 casesAll aircraft: 9,295 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-22: 2 casesAll aircraft: 594 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that, after the airplane entered the right downwind leg of the traffic pattern for runway 19, he received the airport wind information, which indicated wind from 290 degrees at 8 knots gusting to 12 knots; this resulted in a quartering tailwind for the landing. During the landing, the tailwheel-equipped airplane started to veer left and then ground looped, which resulted in the separation of the right main landing gear and impact with the runway surface. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

On July 28, 2014, at 1545 Alaska daylight time, a tail wheel-equipped Piper PA-22, N8883C, experienced a ground loop during landing roll on runway 19 at the Dillingham Municipal Airport (DLG), Dillingham, Alaska. The airplane sustained substantial damage to the right wing and right horizontal stabilizer. The pilot and two passengers were uninjured. The airplane was registered to and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight that was not operating on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The flight originated from Ekuk, Alaska, at 1500 and was destined to DLG. The pilot stated in his National Transportation Safety Board (NTSB) Pilot/Operator Accident/Incident Report that he departed from Ekuk, Alaska, at 1500 to fly two passengers to DLG where they were going to take a commercial flight home. The pilot also stated that during the approach to DLG, the DLG Automatic Terminal Information Service reported wind from 220 degrees at 8 knots gusting 12 knots. The pilot flew the airplane over the runway and entered a right downwind for runway 19 (6,400 feet by 150 feet, grooved asphalt). After seeing the airport windsock, he asked for a wind check which reported wind 290 degrees at 8 knots gust 12 knots. The pilot said that he considered landing on runway 01 but at the time another airplane reported entering downwind for runway 19 so he continued his approach to land on runway 19 with a quartering tailwind. He said that during the landing and as the airplane touched down onto the runway, he reduced engine power to idle as the airplane tail lowered onto the runway. As the airplane slowed, he looked away from the runway for a second and when he looked up and outside, the airplane started to slowly veer to the left. He slid his foot up onto the rudder pedal to apply right brake, but because he was wearing flip flops, his foot slipped off. He thought about adding engine power to gain rudder control but decided that reapplication of right brake would be sufficient. The airplane started to speed up and was headed toward the right edge of the runway. As the airplane neared the runway, the pilot allowed the airplane to ground loop so as to remain on the runway. The right main landing gear sheared off and the airplane collapsed on its right wing, and the propeller struck the ground while the engine was operating at idle power. The airplane slid for about 15 feet before coming to a stop. The pilot reported that there was no mechanical malfunction/failure with the airplane. The pilot reported that the airplane weight at the time of the accident was 1,920 lbs. The airplane gross weight was 1,950 lbs. During a telephone conversation with the NTSB Investigator-In-Charge, the pilot stated that during the landing, the airplane was not slowing, and he "jammed" right rudder to avoid going off the departure end of the runway. He said that Piper PA-22 airplanesare "really short coupled," and the accident airplane was equipped with a larger set of tires. The braking performance with the larger set of tire is not as good on asphalt surfaces as on unimproved landing surfaces.

Aircraft

Registration
N8883C
Reported as
Piper PA-22
Category
Airplane
Serial number
22-1465
Built
1953
Engine
Lycoming O-360, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Travis Ball
Registered owner
Travis Ball
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 26, 2013
Departed
Ekuk, AK
Destination
DLG · Dillingham, AK
Airport
DLG · Dillingham Municipal Airport, runway 19, 6,400 × 100 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
43
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Left
Flight hours
650 total · 605 in this make and model · 650 as pilot in command · 35 in the last 90 days · 35 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 7 knots
Visibility
20 statute miles
Temperature
72 °F, dew point 55 °F
Altimeter
29.96 inHg
Observed at
DLG

Docket · 2

The files NTSB released with the investigation on September 24, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 MB 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.

Other investigations on N8883C · 2

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