20041012035659A

Accident · Substantial damage

FAA accident report · Slinds 100ACMDR · Pittsburgh, PA · October 12, 2004

Date
October 12, 2004 · 18:27 local
Place
Pittsburgh, PA
Airport
Allegheny County
Phase of flight
Takeoff Ground Roll
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N81DC
NTSB investigation
NTSBIAD05LA003
Reported as
Slinds 100ACMDR
People aboard
2
Fatal injuries
0
Pilot’s flight hours
1,400 total40 in this make and model30 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.

(-23) At 1827ET, N81DC a rockwell AC-100 was taking off from Allegheny County Airport runway 28. A student pilot was making the take off with an instructor monitoring the flight controls. As power was applied the aircraft began to accelerate down the runway. The aircraft began to veer to the right; the student pilot questioned the instructor as to why she could not stop the aircraft from going to the right. The instructor immediately took the controls; the aircraft became airborne and abruptly turned right (about 30 degrees from runway 28). The instructor leveled the aircraft and landed off the right side of the runway. The aircraft touched down in the sod on the right main first and bounced hard back in the air and then onto the left gear. The aircraft continued rolling on all three gear off the right side of the runway at about a 30 degree angle. The aircraft went through a low deer fence with electrical wires, the left horizontal stabilizer/elevator impacted a fence post about 3 feet high. The right wing led the aircraft through some scrub trees about 2 to 3 inches thick, coming to rest approximately 100 yards north of the runway in a wooded area on a steep embankment nose down. Inspection of the aircraft revealed that the nose wheel fairing/stabilizer which is required to be installed for additional stability was installed, but was destroyed. The nose gear was broken backwards pulling on the rudder cables and buckling the lower aft fuselage. The propeller had deep narrow cuts in both blades. Both left and right wings were damaged on the leading edged and on the bottoms. The aft left wing root and fuselage area was damaged. The right wing strut was bent backwards. Continuity of the flight controls and fuel system was confirmed.

As the FAA filed it

(-23) AT 1827ET, N81DC A ROCKWELL AC-100 WAS TAKING OFF FROM ALLEGHENY COUNTY AIRPORT RUNWAY 28. A STUDENT PILOT WAS MAKING THE TAKE OFF WITH AN INSTRUCTOR MONITORING THE FLIGHT CONTROLS. AS POWER WAS APPLIED THE AIRCRAFT BEGAN TO ACCELERATE DOWN THE RUNWAY. THE AIRCRAFT BEGAN TO VEER TO THE RIGHT; THE STUDENT PILOT QUESTIONED THE INSTRUCTOR AS TO WHY SHE COULD NOT STOP THE AIRCRAFT FROM GOING TO THE RIGHT. THE INSTRUCTOR IMMEDIATELY TOOK THE CONTROLS; THE AIRCRAFT BECAME AIRBORNE AND ABRUPTLY TURNED RIGHT (ABOUT 30 DEGREES FROM RUNWAY 28). THE INSTRUCTOR LEVELED THE AIRCRAFT AND LANDED OFF THE RIGHT SIDE OF THE RUNWAY. THE AIRCRAFT TOUCHED DOWN IN THE SOD ON THE RIGHT MAIN FIRST AND BOUNCED HARD BACK IN THE AIR AND THEN ONTO THE LEFT GEAR. THE AIRCRAFT CONTINUED ROLLING ON ALL THREE GEAR OFF THE RIGHT SIDE OF THE RUNWAY AT ABOUT A 30 DEGREE ANGLE. THE AIRCRAFT WENT THROUGH A LOW DEER FENCE WITH ELECTRICAL WIRES, THE LEFT HORIZONTAL STABILIZER/ELEVATOR IMPACTED A FENCE POST ABOUT 3 FEET HIGH. THE RIGHT WING LED THE AIRCRAFT THROUGH SOME SCRUB TREES ABOUT 2 TO 3 INCHES THICK, COMING TO REST APPROXIMATELY 100 YARDS NORTH OF THE RUNWAY IN A WOODED AREA ON A STEEP EMBANKMENT NOSE DOWN.INSPECTION OF THE AIRCRAFT REVEALED THAT THE NOSE WHEEL FAIRING/STABILIZER WHICH IS REQUIRED TO BE INSTALLED FOR ADDITIONAL STABILITY WAS INSTALLED, BUT WAS DESTROYED. THE NOSE GEAR WAS BROKEN BACKWARDS PULLING ON THE RUDDER CABLES AND BUCKLING THE LOWER AFT FUSELAGE. THE PROPELLER HAD DEEP NARROW CUTS IN BOTH BLADES. BOTH LEFT AND RIGHT WINGS WERE DAMAGED ON THE LEADING EDGED AND ON THE BOTTOMS. THE AFT LEFT WING ROOT AND FUSELAGE AREA WAS DAMAGED. THE RIGHT WING STRUT WAS BENT BACKWARDS. CONTINUITY OF THE FLIGHT CONTROLS AND FUEL SYSTEM WAS CONFIRMED.

NTSB investigation

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