20050819024229A

Accident · Substantial damage

FAA accident report · Piper PA-12 · Boscobel, WI · August 19, 2005

Date
August 19, 2005 · 19:00 local
Place
Boscobel, WI
Airport
Boscobel Airport
Phase of flight
Roll-Out (Fixed Wing)
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N425AH
NTSB investigation
NTSBCHI05CA240
Reported as
Piper PA12
People aboard
2
Fatal injuries
0
Pilot’s flight hours
19,300 total100 in this make and model45 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) On 08/19/05, at approximately 1900 CDT, the pilot privacy data omitted a flight instructor was giving dual instruction, for a tailwheel endorsement, to a private pilot privacy data omitted at the Boscobel Airport. They were landing on runway 20. The airplane started a left turn towards the grass. At about 15 miles power hour, the right gear folded under the airplane and pushed it up about 5 feet, and then fell on the wing tip. This caused the right wing and prop to be bent. The aircraft ended up on the grass. After the accident the pilot found that the right front landing gear attach bolt broke. Part of the bolt was in the bushing and the rest of the bolt was missing. The wind at the time was light and variable.

As the FAA filed it

(-23) ON 08/19/05, AT APPROXIMATELY 1900 CDT, THE PILOT ^PRIVACY DAT^ A FLIGHT INSTRUCTOR WAS GIVING DUAL INSTRUCTION, FOR A TAILWHEEL ENDORSEMENT, TO A PRIVATE PILOT ^PRIVACY DATA OMI^ AT THE BOSCOBEL AIRPORT. THEY WERE LANDING ON RUNWAY 20. THE AIRPLANE STARTED A LEFT TURN TOWARDS THE GRASS. AT ABOUT 15 MILES POWER HOUR, THE RIGHT GEAR FOLDED UNDER THE AIRPLANE AND PUSHED IT UP ABOUT 5 FEET, AND THEN FELL ON THE WING TIP. THIS CAUSED THE RIGHT WING AND PROP TO BE BENT. THE AIRCRAFT ENDED UP ON THE GRASS. AFTER THE ACCIDENT THE PILOT FOUND THAT THE RIGHT FRONT LANDING GEAR ATTACH BOLT BROKE. PART OF THE BOLT WAS IN THE BUSHING AND THE REST OF THE BOLT WAS MISSING. THE WIND AT THE TIME WAS LIGHT AND VARIABLE.

NTSB investigation

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