ANC96LA147

NTSB accident investigation · Rans 7 · Anchorage, AK · September 9, 1996

Accident · No injuriesLimited investigationFinal report
Date
September 8, 1996, 21:04 local (Sep 9, 1996, 05:04 UTC)
Place
Anchorage, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4012HRans 7
Weather
Visual (VMC) · Dusk
Status
Completed · report August 29, 1997
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960908026309A
Case key
2899

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 improper recovery from a bounced landing and failure to maintain control of the aircraft. A factor relatated to the accident was: the pilot's improper decision to continue the flight after he identified he was having difficulty landing the airplane.

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.

Loss of control - on ground/waterLanding
Recovery from bounced landing - improperPilot in command(cfi)Cause
Aircraft control - not maintainedPilot in command(cfi)Cause
Improper decisionPilot in command(cfi)Factor
On ground/water collision with objectLanding
Object - aircraft parked/standing

Analysis

The purpose of the flight was for the flight instructor (CFI) to become familiar with the homebuilt experimental airplane and to then teach the student pilot/owner, who was also aboard the airplane. According to the CFI, he was having continuing difficulty landing the airplane at the practice, gravel airstrip, and thought about leaving the airplane there and retrieving it later. He elected to fly the airplane to Merrill Field, in Anchorage, because it was getting dark and he wanted to get the airplane to its home base. He also noted that he assumed the paved runway at Merrill would be more difficult to land on. While landing at Merrill Field, the airplane bounced two or three times, and went off the right side of runway 24. The CFI attempted to abort the landing, but was unable to keep the airplane from striking airplanes parked on the ramp. The CFI said there was no preimpact mechanical difficulties with airplane.

Factual narrative

On September 8, 1996, about 2104 Alaska daylight time, a wheel equipped, home built experimental airplane, N4012H, sustained substantial damage while landing at Merrill Field, Anchorage, Alaska. The commercial certificated pilot/flight instructor and the owner/pilot-rated passenger aboard were not injured. The local, 14 CFR Part 91 flight operated in visual meteorological conditions without a flight plan.

During a telephone interview with the NTSB investigator-in-charge on September 10, the pilot-in-command (PIC) stated that the purpose of the flight was for him to become familiar with the accident airplane's flight characteristics. Once he became familiar with the airplane, he intended to instruct the owner, a student pilot, and help him to become familiar with the airplane. The PIC said they departed Merrill Field about 1800, and flew across Cook Inlet to a gravel airstrip at Goose Bay to practice landings and high speed taxi tests. This was the pilot's first flight in the airplane. The PIC indicated that the airplane was difficult for him to control at low speeds, and touchy on the controls. He said he had difficulty landing the airplane at Goose Bay, and debated leaving the airplane there instead of flying it back to Anchorage, where he would have to land on a paved, less forgiving, runway. He said he elected to fly to Merrill Field, as Goose Bay is a remote location, and getting a ride to Anchorage would have been difficult.

The PIC said the airplane bounced two or three times after touchdown on runway 24. On the last bounce, the airplane went to the right, towards the ramp area. He said he initially added power, with the intent of aborting the landing, but experienced difficulty in controlling the airplane. The airplane continued to go to the right, towards parked aircraft, and he decided to reduce the power and land. The airplane landed off the paved surface, and collided with parked airplanes in the ramp area.

The airplane owner and the PIC said there was no known preaccident mechanical anomaly with the airplane, only that it was difficult to control at slow airspeeds.

Aircraft

Registration
N4012H
Reported as
Rans 7
Category
Airplane, amateur-built
Serial number
13
Airframe hours
46
Engine
Rotax 532, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Danny Joe Burnham
Registered owner
John Nie C. Brians
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Continuous airworthiness · April 9, 1996 · 2 hours before
Departed
Wasilla, AK
Destination
MRI
Airport
MRI · Merrill Field, runway 24, 3,999 × 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
35
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
515 total · 2 in this make and model · 458 as pilot in command · 12 in the last 90 days · 4 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
135 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point 36 °F
Altimeter
29.00 inHg
Observed at
MRI

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 N4012H · 1

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