# NTSB CHI97LA171: Roe-Wayne Mustang II, N11WJ, Portage, MI, June 18, 1997 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: June 18, 1997, 13:55 local (17:55 UTC) - Place: Portage, MI - Location: 42.2012° N, 85.5800° W: Placed by OpenAirDocs: center of Portage, MI, within about 6 miles (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=42.2012&lon=-85.5800&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report June 26, 1998 - Report: Approved by Office Director - NTSB case key (mKey): 10598 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI97LA171 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10598/pdf - Page: https://openairdocs.org/ntsb/CHI97LA171 ## Probable cause inadequate fuel system design by the owner/builder, which led to fuel starvation as the airplane was on a 'flat' approach to land. The pilot's inadequate flight planning was a factor, in that he did not fly the traffic pattern of this first test flight, in a manner that would allow for gliding to a landing, in the event of a loss of engine power. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(total) - nonmechanical, approach - vfr pattern - final approach - fluid,fuel - starvation (cause) - acft/equip,inadequate design, pilot in command (cause) - Forced landing, emergency landing - In flight collision with object, emergency landing - in-flight planning/decision - inadequate, pilot in command (contributing factor) - object - tree(s) ## Analysis The experimental airplane was on its first test flight. A witness said he saw the airplane on a '...flat...' approach toward the landing runway. He said he saw the wings banking left and right shortly before the airplane pitched down and collided with trees. A second witness said he saw the airplane settling '...faster than [it] should.' The investigation revealed no anomalies with the flight control system, engine or ignition system that would prevent flight. Fuel was found in the fuselage fuel tank. No fuel was observed in the undamaged engine-driven or electric fuel pumps or in the fuel line between the fuel servo and flow divider. The fuselage fuel tank vent was mounted on the bottom of the fuselage with its angled end facing aft. The fuel servo was bench flow checked and it met the manufacturer's flow specifications. The engine-driven and electric fuel pumps were hooked up in-line between the fuel strainer and engine. ## Factual narrative On June 18, 1997, at 1355 eastern daylight time, a Roe-Wayne Mustang II, N11WJ, piloted by a commercial pilot, was destroyed during a collision with trees and terrain while on a landing approach at the Austin Lakes Airport, Portage, Michigan. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 test flight was operating without a flight plan. The pilot was seriously injured. The flight departed Portage, Michigan, exact time unknown. According to the pilot's family members, the pilot cannot recall the events surrounding the accident. One witness, a friend of the pilot, said N11WJ was making its first test flight after Federal Aviation Administration certification. This witness said N11WJ's approach path was "...to flat... ." The witness said he saw N11WJ's left wing "...dip..." shortly before the airplane pitched down and collided with the trees. A second witness said N11WJ's initial glide path on final approach looked correct. He said, "All of a sudden, he looked like he was settling faster than he should." He said N11WJ made a gentle turn away from the final approach path toward the trees. He said he did not see the airplane stall. The witness said it appeared to him as though N11WJ flew into the trees. The on-scene investigation was conducted by a Federal Aviation Administration Principal Maintenance Inspector (PMI). According to the PMI, N11WJ's engine had internal mechanical continuity. One propeller blade was bent aft about 30-degrees at its midspan point. The second blade was straight. Both propeller blades had various sized chordwise rub marks that were comprised of a mixture of green and brown colors. Both magnetos sparked when rotated by hand. The on-scene investigation revealed flight control continuity for all 3 axes. The PMI said he observed a trace of fuel in the flow divider. The PMI said the flow divider was installed upside down, underneath its mounting bracket. He said he did not observe fuel in the undamaged electric and engine-driven fuel pumps. The PMI said he observed about a tablespoonful of fuel in the fuel servo. The PMI said he did not observe any fuel in the line between the fuel servo and flow divider. According to the PMI, the fuel he observed was yellow in color and had an odor similar to auto fuel. The PMI said N11WJ's fuel lines were intact. He said he did not observe any fuel in the lines. He said the wingtip auxiliary fuel tanks were empty and that the fuselage fuel tank had at least 5 gallons of fuel in it. The PMI said the fuel tank vent on the bottom of the fuselage and was not plugged. The vent line extended vertically out of the fuselage about 1-inch and had its end cut at an approximate 45-degree angle. The angled-end faced aft, away from the normal inflight airstream. The PMI said N11WJ's engine-driven and electric fuel pump were installed in series (in-line) forward of the fuel strainer. This system design was setup with the fuel supply (fuselage tank) feeding into the fuel strainer that in turn fed into an electric fuel pump. This pump then fed into the engine-driven fuel pump. The fuel servo was bench flow checked and met the manufacturer's specifications. The pilot did not submit an NTSB 6120.1/2. The Federal Aviation Administration Principal Operations Inspector gave a family member a copy of this form, requesting they help the pilot in filling it out when he recovered from his injuries. A copy of this form was also mailed to the pilot on June 25, 1997, by the NTSB investigator-in-charge. The pilot did not return either form. ## Aircraft - Registration: [N11WJ](https://openairdocs.org/deregistered/N11WJ-1999-04-14), registration cancelled 1999-04-14, S/N WR-2 (OpenAirDocs) - Reported make and model: ROE-WAYNE MUSTANG II - Registry model: [Roe-Wayne MUSTANG II](https://openairdocs.org/model/roe-wayne-mustang-ii) (registry code 05609R4) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: WR-2 - Airframe hours: 1 - Engines: LYCOMING IO-360 180 horsepower reciprocating - Damage: Destroyed - Flight: Part 91 - Registered owner: Wayne C. Roe - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Unknown, August 28, 1978, 1 hours before - Departed: 09C - Destination: 09C - Airport: 09C, Austin Lakes ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 77; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 4,000 total ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 4 knots - Visibility: 10 statute miles - Lowest ceiling: 4,000 ft broken - Temperature: 75 °F, dew point 61 °F - Observed at: AZO, 4 nm away ## 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 19970618014619A](https://openairdocs.org/incident/19970618014619A), Jun 18, 1997: Amtr MUSTANG2, Portage, MI, Destroyed. Aircraft was on approach and landed short of the runway in a corn field. (.4) the experimental airplane was on its first test flight. A witness said he saw the… 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.