What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On April 24th, at 0930 local time, a Cessna R182 aircraft, registered to an LLC and operated by a private pilot, received minor damage when the nose and left main gear retracted uncommanded following a normal landing on runway 11 at Allegan, Padgham Field (35D). Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of title 14 code of federal regulations (CFR) part 91 without a flight plan. The pilot was the only occupant and received no injuries. The local flight originated from the Allegan, Padgham Field (35D) at approximately 0848 local time.
Weather data at kgrr: 2412532 28005KT L0SM BKN210 16/09 A3018 rmk A02 SLP218 T01560089
Details of the flight and incident as known from pilot:
Pilot stated that he arrived to 35D at approximately 0800 conducted preflight checks and pulled aircraft out, taxied to runway 11 and proceeded to fly twice around the pattern with two normal landings then took off a third time and flew west to the lake Michigan lakeshore and then back to 35D. Prior to his final landing he lowered gear and received green light and continued the pattern and landed normally on runway 11 and when he has slowed to approximately 15-20 knots the nose gear collapsed followed by the left main. Aircraft came to rest approximately 2,270FT from the approach end of runway 11.
Post incident examination of the aircraft revealed:
Upon arriving on the scene, the aircraft was lying on its belly and left wing tip with both nose and left main gear retracted but not locked in a gear-up position. All breakers were in, gear handle was in a down position, flaps were in the up position, fuel selector had been turned off, as well as master switch. One propeller blade tip was bent forward, and the other was bent back. Impact damage to the propeller caused both blade retention snap rings to pop out. Both nose gear doors are scrapped along with lower cowls. Both exhaust stacks are ground down, the left more than the right. Left belly antenna scrapped off aft of the engine bay. Belly skin has scrapes on the left side, roughly from the engine exhaust back to the main gear attach point. Minor scrapping also noted on the underside of the left wing tip fairing.
Unable to determine the root cause for the uncommanded gear retraction at this time.
As the FAA filed it
ON APRIL 24TH, AT 0930 LOCAL TIME, A CESSNA R182 AIRCRAFT, REGISTERED TO AN LLC AND OPERATED BY A PRIVATE PILOT, RECEIVED MINOR DAMAGE WHEN THE NOSE AND LEFT MAIN GEAR RETRACTED UNCOMMANDED FOLLOWING A NORMAL LANDING ON RUNWAY 11 AT ALLEGAN, PADGHAM FIELD (35D). VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. THE PERSONAL FLIGHT WAS BEING CONDUCTED UNDER THE PROVISIONS OF TITLE 14 CODE OF FEDERAL REGULATIONS (CFR) PART 91 WITHOUT A FLIGHT PLAN. THE PILOT WAS THE ONLY OCCUPANT AND RECEIVED NO INJURIES. THE LOCAL FLIGHT ORIGINATED FROM THE ALLEGAN, PADGHAM FIELD (35D) AT APPROXIMATELY 0848 LOCAL TIME.
WEATHER DATA AT KGRR: 2412532 28005KT L0SM BKN210 16/09 A3018 RMK A02 SLP218 T01560089
DETAILS OF THE FLIGHT AND INCIDENT AS KNOWN FROM PILOT:
PILOT STATED THAT HE ARRIVED TO 35D AT APPROXIMATELY 0800 CONDUCTED PREFLIGHT CHECKS AND PULLED AIRCRAFT OUT, TAXIED TO RUNWAY 11 AND PROCEEDED TO FLY TWICE AROUND THE PATTERN WITH TWO NORMAL LANDINGS THEN TOOK OFF A THIRD TIME AND FLEW WEST TO THE LAKE MICHIGAN LAKESHORE AND THEN BACK TO 35D. PRIOR TO HIS FINAL LANDING HE LOWERED GEAR AND RECEIVED GREEN LIGHT AND CONTINUED THE PATTERN AND LANDED NORMALLY ON RUNWAY 11 AND WHEN HE HAS SLOWED TO APPROXIMATELY 15-20 KNOTS THE NOSE GEAR COLLAPSED FOLLOWED BY THE LEFT MAIN. AIRCRAFT CAME TO REST APPROXIMATELY 2,270FT FROM THE APPROACH END OF RUNWAY 11.
POST INCIDENT EXAMINATION OF THE AIRCRAFT REVEALED:
UPON ARRIVING ON THE SCENE, THE AIRCRAFT WAS LYING ON ITS BELLY AND LEFT WING TIP WITH BOTH NOSE AND LEFT MAIN GEAR RETRACTED BUT NOT LOCKED IN A GEAR-UP POSITION. ALL BREAKERS WERE IN, GEAR HANDLE WAS IN A DOWN POSITION, FLAPS WERE IN THE UP POSITION, FUEL SELECTOR HAD BEEN TURNED OFF, AS WELL AS MASTER SWITCH. ONE PROPELLER BLADE TIP WAS BENT FORWARD, AND THE OTHER WAS BENT BACK. IMPACT DAMAGE TO THE PROPELLER CAUSED BOTH BLADE RETENTION SNAP RINGS TO POP OUT. BOTH NOSE GEAR DOORS ARE SCRAPPED ALONG WITH LOWER COWLS. BOTH EXHAUST STACKS ARE GROUND DOWN, THE LEFT MORE THAN THE RIGHT. LEFT BELLY ANTENNA SCRAPPED OFF AFT OF THE ENGINE BAY. BELLY SKIN HAS SCRAPES ON THE LEFT SIDE, ROUGHLY FROM THE ENGINE EXHAUST BACK TO THE MAIN GEAR ATTACH POINT. MINOR SCRAPPING ALSO NOTED ON THE UNDERSIDE OF THE LEFT WING TIP FAIRING.
UNABLE TO DETERMINE THE ROOT CAUSE FOR THE UNCOMMANDED GEAR RETRACTION AT THIS TIME.