# NTSB ANC96LA147: Rans 7, N4012H, Anchorage, AK, September 9, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 8, 1996, 21:04 local (Sep 9, 1996, 05:04 UTC) - Place: Anchorage, AK - Coordinates: 61.21096, -149.890472 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=61.2110&lon=-149.8905&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report August 29, 1997 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - NTSB case key (mKey): 2899 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC96LA147 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/2899/pdf - Page: https://openairdocs.org/ntsb/ANC96LA147 ## 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 In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - recovery from bounced landing - improper, pilot in command(cfi) (cause) - aircraft control - not maintained, pilot in command(cfi) (cause) - improper decision, pilot in command(cfi) (contributing factor) - On ground/water collision with object, landing - 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](https://openairdocs.org/deregistered/N4012H-2017-10-26), registration cancelled 2017-10-26, S/N 13, built 1987 (OpenAirDocs) - Reported make and model: Rans 7 - Registry model: [Brians Johnnie RANS S-7](https://openairdocs.org/model/brians-johnnie-rans-s-7) (registry code 05618GQ) (OpenAirDocs) - Registry engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 13 - Airframe hours: 46 - Engines: 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 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 35; 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 (OpenAirDocs). - [Accident 19960908026309A](https://openairdocs.org/incident/19960908026309A), Sep 8, 1996: Amtr RANSS7, Anchorage, AK, Substantial damage. First flight in type with owner on board. Bounced porpoised landing. Lost control veered into parked aircraft. ## Other investigations on N4012H (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ANC01LA140](https://openairdocs.org/ntsb/ANC01LA140), Sep 10, 2001: Rans S-7 (N4012H), Chugiak, AK, substantial damage. Probable cause: The pilot's inadvertent stall of the airplane during takeoff. From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.