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20120328004299I

Incident · Minor damage
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FAA incident report · Columbia Aircraft Mfg LC41-550FG · Concord, NC · March 28, 2012

FAA Aviation Safety Information Portal

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Date
March 28, 2012 · 12:24 local
Place
Concord, NC
Airport
Concord Regional Airport
Phase of flight
Landing: Touchdown
Operating rules
General operating rules (Part 91)
Damage
Minor damage
Aircraft
N1551F
Reported as
Columbia Aircraft Mfg LC41-550FG
Reported engine
Continental TSIO-550-C
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Private pilot
Pilot’s flight hours
180 total45 in this make and model50 in the last 90 days
N1551FRegistered now · Columbia Aircraft Mfg LC41-550FGS/N 41721 · Built 2007Airframe modelColumbia Aircraft Mfg LC41-550FGEngine modelContinental TSIO-550-CReciprocating

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.

Nose gear fork mount bolts sheared and fork/ nose wheel/wheel pants departed the aircraft. Forward lower area of nose gear oleo which the gear fork mounts was ground 50% through the material from contact with the runway. There are several marks on the aircraft runway where the nose gear bounced on the oleo then marks following where the prop contacted the runway with the aircraft sliding into the grass on the west side of the runway. The aft pilots side mount bolt for the nose gear fork was found in oleo mount and bent aft. The retainer nut plate bracket for the nose fork had the two froward and the aft right bolts sheared in the nut plates. The pilots side aft nut plate had the threads pulled out of the nutplate which matched the bolt still in the strut. The two front of mount bolts were located and pulled in a sheared condition. There are no wear marks or evidence of bolts working in the fork or strut. The aft mount holes on the fork has elongation in the top aft area of the bolt hole wear tension was applied to the bolt when it was bent and pulled out of the retaining bracket. The nose gear was bent aft on the aircraft. The lower engine mount struts which the nose gear assembly mounts was compressed aft towards the firewall and severly damaged. The prop blades and tips were curled from contact with the runway. No apparent damage of the engine firewall or structure.

As the FAA filed it

NOSE GEAR FORK MOUNT BOLTS SHEARED AND FORK/ NOSE WHEEL/WHEEL PANTS DEPARTED THE AIRCRAFT. FORWARD LOWER AREA OF NOSE GEAR OLEO WHICH THE GEAR FORK MOUNTS WAS GROUND 50% THROUGH THE MATERIAL FROM CONTACT WITH THE RUNWAY. THERE ARE SEVERAL MARKS ON THE AIRCRAFT RUNWAY WHERE THE NOSE GEAR BOUNCED ON THE OLEO THEN MARKS FOLLOWING WHERE THE PROP CONTACTED THE RUNWAY WITH THE AIRCRAFT SLIDING INTO THE GRASS ON THE WEST SIDE OF THE RUNWAY. THE AFT PILOTS SIDE MOUNT BOLT FOR THE NOSE GEAR FORK WAS FOUND IN OLEO MOUNT AND BENT AFT. THE RETAINER NUT PLATE BRACKET FOR THE NOSE FORK HAD THE TWO FROWARD AND THE AFT RIGHT BOLTS SHEARED IN THE NUT PLATES. THE PILOTS SIDE AFT NUT PLATE HAD THE THREADS PULLED OUT OF THE NUTPLATE WHICH MATCHED THE BOLT STILL IN THE STRUT. THE TWO FRONT OF MOUNT BOLTS WERE LOCATED AND PULLED IN A SHEARED CONDITION. THERE ARE NO WEAR MARKS OR EVIDENCE OF BOLTS WORKING IN THE FORK OR STRUT. THE AFT MOUNT HOLES ON THE FORK HAS ELONGATION IN THE TOP AFT AREA OF THE BOLT HOLE WEAR TENSION WAS APPLIED TO THE BOLT WHEN IT WAS BENT AND PULLED OUT OF THE RETAINING BRACKET. THE NOSE GEAR WAS BENT AFT ON THE AIRCRAFT. THE LOWER ENGINE MOUNT STRUTS WHICH THE NOSE GEAR ASSEMBLY MOUNTS WAS COMPRESSED AFT TOWARDS THE FIREWALL AND SEVERLY DAMAGED. THE PROP BLADES AND TIPS WERE CURLED FROM CONTACT WITH THE RUNWAY. NO APPARENT DAMAGE OF THE ENGINE FIREWALL OR STRUCTURE.