# Accident 19970614019949A: Waco YMF, Longville, MN, June 14, 1997

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 14, 1997, 13:20 local time
- Place: Longville, MN
- Airport: Longville Municipal Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 46.9790° N, 94.2109° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=46.9790&lon=-94.2109&mi=10
- Aircraft: N820MM, a cancelled registration (https://openairdocs.org/deregistered/N820MM-2007-10-26) (OpenAirDocs)
- Registry model: Classic WACO YMF (registry code 2240101, https://openairdocs.org/model/classic-waco-ymf) (OpenAirDocs)
- Registry engine: Jacobs R755B series (registry code 35007, https://openairdocs.org/engine/jacobs-r755b-series) (OpenAirDocs)
- Reported make and model: WACO YMF
- Reported engine: JACOBP R755B2M
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 1,110 total, 225 in this make and model, 23 in the last 90 days
- NTSB investigation: [NTSB CHI97LA170](https://openairdocs.org/ntsb/CHI97LA170) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970614019949A

## Narrative

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

LANDED DOWNWIND OVERRAN END INTO A DITCH. FLIPPED OVER. WINDSOCK BLOCKED BY TREES. DITCH NOT IN AIRPORT DIAGRAMS. (-23) THE LONGVILLE AIRPORT WINDSOCK IS SHADED BY TREES ON SOUTHWEST SIDE OF AIRPORT FACILITY AND DOES NOT GIVE ACCURATE WIND INDICATIONS.  PILOT FLEW OVER AIRPORT AND ENTERED DOWNWIND FOR APPROPRIATE RUNWAY.  UPON LANDING PILOT DISCOVERED TRUE WIND WAS QUARTERING TAILWIND AS AIRCRAFT LEFT RUNWAY.  PILOT FURTHER SURPRISED BY 6 FT. DEEP DITCH WHICH IS NOT VISIBLE FROM RUNWAY AND IS NOT SHOWN ON PUBLISHED AIRPORT INFORMATION.  AIRCRAFT ENTERED DITCH AND FLIPPED OVER.  AVIATION SAFETY PROGRAM MANAGER AT MINNEAPOLIS FSDO IS WORKING WITH MINNESOTA DEPT OF TRANSPORTATION TO RELOCATE WIND DIRECTION INDICATOR TO A SUITABLE LOCATION, AND RELOCATION OF DRAINAGE DITCH SO AS NOT TO PRESENT A HAZARD.

## 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 CHI97LA170](https://openairdocs.org/ntsb/CHI97LA170), Jun 14, 1997: Waco YMF (N820MM), Longville, MN, substantial damage. Probable cause: failure of the pilot to maintain directional control of the airplane. Factors relating to the accident were: the gusty wind condition and the ditch.

## Other reports on N820MM (1)

Matched to the same aircraft by N-number and date.

- [Accident 19990402003039A](https://openairdocs.org/incident/19990402003039A), Apr 2, 1999: Waco YMF (N820MM), Baco Raton, FL, Substantial damage. Pilot reported that oil was leaking onto the acft wiandshield and that he was trying to make it to the arpt, the acft overflew the arpt due to oil on he…

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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