19980517009749A

Accident · Substantial damage

FAA accident report · Cessna 172A · Van Nuys, CA · May 17, 1998

Date
May 17, 1998 · 16:00 local
Place
Van Nuys, CA
Airport
Van Nuys Airport
Phase of flight
Ground Taxi, Other Airplane
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N7222T
NTSB investigation
NTSBLAX98LA163
Reported as
Cessna 172A
Reported engine
Continental O300C
People aboard
1
Fatal injuries
0
Pilot’s flight hours
299 total68 in this make and model5 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Struck perimeter fence taxiing for takeoff. Disoriented entered a service road. (.4)the pilot received a ground control clearance to taxi for takeoff from his transient position near the northeast side of the airport to the beginning of runway 16L. He proceeded slowly in a northerly direction and became somewhat confused regarding the route to take as he approached a barricaded area under construction. According to the pilot, he decided to use a northbound vehicle service road (instead of the taxiway) because earlier, with his flight instructor, he had used another service road near the construction area. While proceeding on the road he deverted his attention toward the active runway, and the airplane's right wing collided with a perimeter boundary fence pole. The taxiway markings in the vicinity of the accident site were subsequently inspected to ascertain thier degree of conformity with advisory circular 150/5340-1G, standard for airport markings. Deficiencies were noted in the vicinity of the barricaded detour area where the pilot reported he had previously taxied. This area was devoid of a taxiway centerline marking. Several hundred feet north of this location, at the intersection of the accident site taxiway and the vehicle service road, the minimum FAA recommended markings were present. Subsequently, the airport's management painted additional ground markings to enhance the conspicuity of the taxiway/access road intersection near the accident site. (-23) the aircraft turned onto an access road instead of the taxiway resulting in the right wing striking a fence. Structural damage is to the right wing spar from the wingtip through to the wing root. Also damaged was the prop and spinner. The taxiway is under construction with part of the access road being used as a taxiway, unfortunately there were no barricades up to warn or prevent an aircraft from taxiing down the other part of the access road.

As the FAA filed it

STRUCK PERIMETER FENCE TAXIING FOR TAKEOFF. DISORIENTED ENTERED A SERVICE ROAD. (.4)THE PILOT RECEIVED A GROUND CONTROL CLEARANCE TO TAXI FOR TAKEOFF FROM HIS TRANSIENT POSITION NEAR THE NORTHEAST SIDE OF THE AIRPORT TO THE BEGINNING OF RUNWAY 16L. HE PROCEEDED SLOWLY IN A NORTHERLY DIRECTION AND BECAME SOMEWHAT CONFUSED REGARDING THE ROUTE TO TAKE AS HE APPROACHED A BARRICADED AREA UNDER CONSTRUCTION. ACCORDING TO THE PILOT, HE DECIDED TO USE A NORTHBOUND VEHICLE SERVICE ROAD (INSTEAD OF THE TAXIWAY) BECAUSE EARLIER, WITH HIS FLIGHT INSTRUCTOR, HE HAD USED ANOTHER SERVICE ROAD NEAR THE CONSTRUCTION AREA. WHILE PROCEEDING ON THE ROAD HE DEVERTED HIS ATTENTION TOWARD THE ACTIVE RUNWAY, AND THE AIRPLANE'S RIGHT WING COLLIDED WITH A PERIMETER BOUNDARY FENCE POLE. THE TAXIWAY MARKINGS IN THE VICINITY OF THE ACCIDENT SITE WERE SUBSEQUENTLY INSPECTED TO ASCERTAIN THIER DEGREE OF CONFORMITY WITH ADVISORY CIRCULAR 150/5340-1G, STANDARD FOR AIRPORT MARKINGS. DEFICIENCIES WERE NOTED IN THE VICINITY OF THE BARRICADED DETOUR AREA WHERE THE PILOT REPORTED HE HAD PREVIOUSLY TAXIED. THIS AREA WAS DEVOID OF A TAXIWAY CENTERLINE MARKING. SEVERAL HUNDRED FEET NORTH OF THIS LOCATION, AT THE INTERSECTION OF THE ACCIDENT SITE TAXIWAY AND THE VEHICLE SERVICE ROAD, THE MINIMUM FAA RECOMMENDED MARKINGS WERE PRESENT. SUBSEQUENTLY, THE AIRPORT'S MANAGEMENT PAINTED ADDITIONAL GROUND MARKINGS TO ENHANCE THE CONSPICUITY OF THE TAXIWAY/ACCESS ROAD INTERSECTION NEAR THE ACCIDENT SITE. (-23) THE AIRCRAFT TURNED ONTO AN ACCESS ROAD INSTEAD OF THE TAXIWAY RESULTING IN THE RIGHT WING STRIKING A FENCE. STRUCTURAL DAMAGE IS TO THE RIGHT WING SPAR FROM THE WINGTIP THROUGH TO THE WING ROOT. ALSO DAMAGED WAS THE PROP AND SPINNER. THE TAXIWAY IS UNDER CONSTRUCTION WITH PART OF THE ACCESS ROAD BEING USED AS A TAXIWAY, UNFORTUNATELY THERE WERE NO BARRICADES UP TO WARN OR PREVENT AN AIRCRAFT FROM TAXIING DOWN THE OTHER PART OF THE ACCESS ROAD.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.