20170928012049I

Incident · Minor damage

FAA incident report · Mervyn L Henkes RV9A · Aurora, OR · September 28, 2017

Date: September 28, 2017 · 10:50 local
Place: Aurora, OR
Airport: Aurora State Airport
Phase of flight: Taxi
Operating rules: General operating rules (Part 91)
Damage: Minor damage
Aircraft: N91MH
Reported as: Mervyn L Henkes RV9A
Reported engine: Lycoming IO-320-D1A
People aboard: 1
Fatal injuries: 0
Other injuries: 0
Pilot’s certificates: Commercial pilot, flight instructor
Pilot’s flight hours: 3,000 total215 in this make and model33 in the last 90 days

N91MHRegistered now · Mervyn L Henkes RV9AS/N 91871 Airframe modelMervyn L Henkes RV9A Engine modelLycoming IO-320-D1AReciprocating

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.

While in the non-movement area of a taxiway near aircraft hangers, the PIC stated that after he started the engine of N91MH, the engine immediately went to a high engine RPM. He reported that the aircraft started to move forward and increase taxi speed. The PIC states that he was unable to reduce the engine throttle. The left wingtip of the aircraft contacted the door of a hangar. The PIC states that when he went to apply the aircraft brakes, the right brake failed. The aircraft made an immediate left turn and the propeller of the aircraft struck the hanger door. The engine stopped after contact. Inspection of the aircraft shows that the right brake line broke at the brake caliper attachment point. The aircraft sustained minor damage. There is damage to two of the three composite propeller blades, the composite prop spinner and the left wingtip. There was also damage to the hanger door. There was no damage to any structural component of the aircraft.

As the FAA filed it

WHILE IN THE NON-MOVEMENT AREA OF A TAXIWAY NEAR AIRCRAFT HANGERS, THE PIC STATED THAT AFTER HE STARTED THE ENGINE OF N91MH, THE ENGINE IMMEDIATELY WENT TO A HIGH ENGINE RPM. HE REPORTED THAT THE AIRCRAFT STARTED TO MOVE FORWARD AND INCREASE TAXI SPEED. THE PIC STATES THAT HE WAS UNABLE TO REDUCE THE ENGINE THROTTLE. THE LEFT WINGTIP OF THE AIRCRAFT CONTACTED THE DOOR OF A HANGAR. THE PIC STATES THAT WHEN HE WENT TO APPLY THE AIRCRAFT BRAKES, THE RIGHT BRAKE FAILED. THE AIRCRAFT MADE AN IMMEDIATE LEFT TURN AND THE PROPELLER OF THE AIRCRAFT STRUCK THE HANGER DOOR. THE ENGINE STOPPED AFTER CONTACT. INSPECTION OF THE AIRCRAFT SHOWS THAT THE RIGHT BRAKE LINE BROKE AT THE BRAKE CALIPER ATTACHMENT POINT. THE AIRCRAFT SUSTAINED MINOR DAMAGE. THERE IS DAMAGE TO TWO OF THE THREE COMPOSITE PROPELLER BLADES, THE COMPOSITE PROP SPINNER AND THE LEFT WINGTIP. THERE WAS ALSO DAMAGE TO THE HANGER DOOR. THERE WAS NO DAMAGE TO ANY STRUCTURAL COMPONENT OF THE AIRCRAFT.