19980424013309A

Accident · Substantial damage

FAA accident report · Gulstm 690B · Denver, CO · April 24, 1998

Date: April 24, 1998 · 14:05 local
Place: Denver, CO
Airport: Jeffco Airport
Phase of flight: Roll-Out (Fixed Wing)
Operating rules: General operating rules (Part 91)
Damage: Substantial damage
Aircraft: N690ES
NTSB investigation: NTSBFTW98LA197
Reported as: Gulstm 690B
Reported engine: Garrett TPE3315251K
People aboard: 2
Fatal injuries: 0
Pilot’s flight hours: 20,000 total550 in this make and model

N690ESRegistration cancelled Jun 8, 2007 · Rockwell International 690BS/N 11388 · Built 1977 Airframe modelRockwell International 690B Engine modelAiResearch TPE331-5&6SERTurbo-prop

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.

Lost directional control while reversing props on landing roll. Folded left gear. Prop tip made hole in fuselage. (.4)the pilot-owner said that after landing, he brought the condition levers from ground idle to reverse. The airplane veered to the right, as if 'one engine was developing more power than the other.' The instructor pilot took control and attempted to straighten the airplane but it departed the runway and struck a concrete culvert. The left landing gear collapsed, and the tip from one of the left propeller blades penetrated the pressure vessel. The right propeller and right and nose landing gears also sustained damage. During repairs, no abnormalities were found with either the propeller, pitch, or bendix controllers. (-23)upon landing and application of prop reverse the aircraft yawed to the right. Directional control was lost and aircraft left runway. Left landing gear collapsed and propeller contacted ground. One prop tip broke off and penetrated pressure vessel.

As the FAA filed it

LOST DIRECTIONAL CONTROL WHILE REVERSING PROPS ON LANDING ROLL. FOLDED LEFT GEAR. PROP TIP MADE HOLE IN FUSELAGE. (.4)THE PILOT-OWNER SAID THAT AFTER LANDING, HE BROUGHT THE CONDITION LEVERS FROM GROUND IDLE TO REVERSE. THE AIRPLANE VEERED TO THE RIGHT, AS IF 'ONE ENGINE WAS DEVELOPING MORE POWER THAN THE OTHER.' THE INSTRUCTOR PILOT TOOK CONTROL AND ATTEMPTED TO STRAIGHTEN THE AIRPLANE BUT IT DEPARTED THE RUNWAY AND STRUCK A CONCRETE CULVERT. THE LEFT LANDING GEAR COLLAPSED, AND THE TIP FROM ONE OF THE LEFT PROPELLER BLADES PENETRATED THE PRESSURE VESSEL. THE RIGHT PROPELLER AND RIGHT AND NOSE LANDING GEARS ALSO SUSTAINED DAMAGE. DURING REPAIRS, NO ABNORMALITIES WERE FOUND WITH EITHER THE PROPELLER, PITCH, OR BENDIX CONTROLLERS. (-23)UPON LANDING AND APPLICATION OF PROP REVERSE THE AIRCRAFT YAWED TO THE RIGHT. DIRECTIONAL CONTROL WAS LOST AND AIRCRAFT LEFT RUNWAY. LEFT LANDING GEAR COLLAPSED AND PROPELLER CONTACTED GROUND. ONE PROP TIP BROKE OFF AND PENETRATED PRESSURE VESSEL.

NTSB investigation

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

NTSB FTW98LA197Accident · No injuriesLimited investigationFinal reportBroomfield, COFailure of the flight instructor to maintain adequate supervision, and failure of the pilot receiving instruction to maintain directional control that was lost for reasons undetermined. A factor was the concrete culvert.Apr 24, 1998 · Substantial damage