# Accident 19990912029639A: Conaer LA4, Ann Arbor, MI, September 12, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 12, 1999, 13:27 local time
- Place: Ann Arbor, MI
- Airport: Bruin Lake
- Damage: Destroyed
- Phase of flight: Level Off Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 42.2761° N, 83.7312° W: Placed by OpenAirDocs: center of Ann Arbor, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.2761&lon=-83.7312&mi=10
- Aircraft: N1137L, a cancelled registration (https://openairdocs.org/deregistered/N1137L-2000-05-30) (OpenAirDocs)
- Registry model: Lake LA-4 (registry code 5110302, https://openairdocs.org/model/lake-la-4) (OpenAirDocs)
- Reported make and model: CONAER LA4
- Fatal injuries: 0
- NTSB investigation: [NTSB CHI99LA339](https://openairdocs.org/ntsb/CHI99LA339) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990912029639A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(.19) ON SEPTEMBER 12, 1999, AT 1327 EASTERN DAYLIGHT TIME, A LAKE LA-4, N1137L, SUSTAINED SUBSTANTIAL DAMAGE DURING A LANDING ON BRUIN LAKE, ABOUT 18 MILES NORTHWEST OF ANN ARBOR, MICHIGAN. THE PILOT RECEIVED SERIOUS INJURIES.  THE PERSONAL 14 CFR PART 19 FLIGHT WAS OPERATING IN VISUAL METEOROLOGICAL CONDITIONS.  NO FLIGHT PLAN WAS ON FILE.  THE LOCAL FLIGHT DEPARTED ABOUT 1300. THE PILOT TOLD POLICE AUTHORITIES THAT HE WAS GOING TO PRACTICE A TOUCH AND GO LANDING ON THE LAKE.  HE SAID THAT ON TOUCHDOWN THE AIRPLANE DECELERATED AS IF "THE BRAKES WERE LOCKED," AND THE AIRPLANE CARTWHEELED.  HE SAID HE DID NOT KNOW WHY THE AIRPLANE DID THIS.  THE AIRPLANE BROKE INTO THREE MAJOR PIECES AND WAS RECOVERED FROM THE LAKE THE DAY AFTER THE ACCIDENT.                                                                        (-23)ACCORDING TO WITNESS, ^PRIVACY DATA^ WAS ATTEMPTING A LANDING ON BRVINE LAKE WHEN HE LOST CONTROL OF THE ACFT. ONE OF THE SPONSONS HIT THE WATER CAUSING THE ACFT. TO CARTWHEEL.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI99LA339](https://openairdocs.org/ntsb/CHI99LA339), Sep 12, 1999: Lake LA-4 (N1137L), Ann Arbor, MI, substantial damage. Probable cause: The pilot's improper touchdown during a water landing.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft 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. For accidents, the NTSB's own investigation is the fuller record.

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