# NTSB investigations, MN: Uncontrolled descent

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CHI82FA013](https://openairdocs.org/ntsb/CHI82FA013.md): Cessna 170B · Onamia, MN · Accident · 1 fatal · Closed · Nov 15, 1981 · N3502C · Destroyed
- [NTSB CHI82FA009](https://openairdocs.org/ntsb/CHI82FA009.md): Piper PA-24 · Kerrick, MN · Accident · 3 fatal · Closed · Oct 30, 1981 · N8898P · Destroyed
- [NTSB MKC78FA067](https://openairdocs.org/ntsb/MKC78FA067.md): Piper PA-28 · St George, MN · Accident · 2 fatal · Closed · Aug 26, 1978 · N43177 · Destroyed
- [NTSB MKC78FA055](https://openairdocs.org/ntsb/MKC78FA055.md): Beech 60 · Faribault, MN · Accident · 6 fatal · Closed · Jul 12, 1978 · N777HH · Substantial damage
- [NTSB MKC78FA041](https://openairdocs.org/ntsb/MKC78FA041.md): Beech 35-B33 · Harris, MN · Accident · 4 fatal · Closed · May 29, 1978 · N1320Z · Destroyed
- [NTSB MKC77FA036](https://openairdocs.org/ntsb/MKC77FA036.md): Cessna 172M · Henning, MN · Accident · 1 fatal · Closed · Aug 30, 1977 · N64190 · Destroyed
- [NTSB MKC77FA029](https://openairdocs.org/ntsb/MKC77FA029.md): Piper PA-28 · Walker, MN · Accident · 4 fatal · Closed · Jun 22, 1977 · N55548 · Destroyed
- [NTSB MKC77FER03](https://openairdocs.org/ntsb/MKC77FER03.md): Piper PA-28 · Rochester, MN · Accident · Serious injuries · Closed · Oct 20, 1976 · N56091 · Substantial damage
- [NTSB MKC76AK084](https://openairdocs.org/ntsb/MKC76AK084.md): Beech P35 · Red Wing, MN · Accident · 1 fatal · Closed · Sep 26, 1976 · N1584Z · Destroyed
- [NTSB MKC76AK045](https://openairdocs.org/ntsb/MKC76AK045.md): Beech V35A · Forbes, MN · Accident · 4 fatal · Closed · Feb 28, 1976 · N869S · Destroyed
- [NTSB MKC7LAK016](https://openairdocs.org/ntsb/MKC7LAK016.md): Mooney M20F · Fairmont, MN · Accident · 3 fatal · Closed · Aug 31, 1975 · N7187V · Destroyed
- [NTSB MKC75FER74](https://openairdocs.org/ntsb/MKC75FER74.md): Bede 4 · Caledonia, MN · Accident · 3 fatal · Closed · Jun 11, 1975 · N77VW · Destroyed
- [NTSB MKC74AK047](https://openairdocs.org/ntsb/MKC74AK047.md): Champion 7GCAA · Warroad, MN · Accident · 1 fatal · Closed · Feb 9, 1974 · N2577F · Destroyed
- [NTSB MKC74AK014](https://openairdocs.org/ntsb/MKC74AK014.md): Taylorcraft BC12-D · Slayton, MN · Accident · 1 fatal · Closed · Oct 2, 1973 · N96184 · Substantial damage
- [NTSB MKC73AK070](https://openairdocs.org/ntsb/MKC73AK070.md): Piper PA-23 · Cloquet, MN · Accident · 2 fatal · Closed · May 26, 1973 · N4330Y · Destroyed
- [NTSB MKC73AK065](https://openairdocs.org/ntsb/MKC73AK065.md): Piper PA-24 · Granger, MN · Accident · 2 fatal · Closed · May 6, 1973 · N8114P · Destroyed
- [NTSB MKC73AK057](https://openairdocs.org/ntsb/MKC73AK057.md): N. American NA-265 · Blaine, MN · Accident · 2 fatal · Closed · Mar 7, 1973 · N9503Z · Destroyed
- [NTSB MKC73AK022](https://openairdocs.org/ntsb/MKC73AK022.md): Forney F-1A · Clearbrook, MN · Accident · 1 fatal · Closed · Sep 19, 1972 · N3034G · Destroyed
- [NTSB MKC73AK017](https://openairdocs.org/ntsb/MKC73AK017.md): Cessna 180B · Anoka, MN · Accident · 2 fatal · Closed · Aug 24, 1972 · N5271E · Destroyed
- [NTSB CHI83FA225](https://openairdocs.org/ntsb/CHI83FA225.md): Cessna 185 · Hovland, MN · Accident · 3 fatal · Closed · Oct 26, 1971 · N9881X · Destroyed
- [NTSB MKC72AK013](https://openairdocs.org/ntsb/MKC72AK013.md): Enstrom F-28A · Osseo, MN · Accident · 2 fatal · Closed · Aug 13, 1971 · N2525M · Destroyed
- [NTSB MKC71FDM50](https://openairdocs.org/ntsb/MKC71FDM50.md): Aero Comdr 100 · Vineland, MN · Accident · Minor injuries · Closed · Mar 26, 1971 · N5503M · Destroyed
- [NTSB MKC71AK025](https://openairdocs.org/ntsb/MKC71AK025.md): Piper PA-32 · Shakopee, MN · Accident · 2 fatal · Closed · Nov 1, 1970 · N4150R · Destroyed
- [NTSB MKC71AK023](https://openairdocs.org/ntsb/MKC71AK023.md): Mooney M20C · St Cloud, MN · Accident · 3 fatal · Closed · Oct 25, 1970 · N6206U · Destroyed
- [NTSB MKC70A0016](https://openairdocs.org/ntsb/MKC70A0016.md): Cessna 182A · Duluth, MN · Accident · 1 fatal · Closed · Oct 4, 1969 · N9924B · Destroyed
- [NTSB MKC69F0432](https://openairdocs.org/ntsb/MKC69F0432.md): Hughes 269B · St Paul, MN · Accident · No injuries · Closed · Apr 10, 1969 · N9486F · Destroyed
- [NTSB MKC69A0038](https://openairdocs.org/ntsb/MKC69A0038.md): Piper PA-22 · Morris, MN · Accident · 2 fatal · Closed · Dec 14, 1968 · N9533D · Destroyed
- [NTSB MKC69A0035](https://openairdocs.org/ntsb/MKC69A0035.md): Mooney M20E · Rochester, MN · Accident · 4 fatal · Closed · Nov 24, 1968 · N5965Q · Destroyed
- [NTSB MKC6.A0026](https://openairdocs.org/ntsb/MKC6.A0026.md): Beech T-34A · Glencoe, MN · Accident · 2 fatal · Closed · Oct 16, 1968 · N10586 · Destroyed
- [NTSB MKC69A0014](https://openairdocs.org/ntsb/MKC69A0014.md): Piper PA-24 · Stewartville, MN · Accident · 1 fatal · Closed · Sep 20, 1968 · N8425P · Destroyed
- [NTSB MKC68A0013](https://openairdocs.org/ntsb/MKC68A0013-108050.md): Piper PA-22 · Lake Benton, MN · Accident · 1 fatal · Closed · Sep 8, 1968 · N6827B · Destroyed
- [NTSB MKC68A0047](https://openairdocs.org/ntsb/MKC68A0047.md): Mooney M20E · Gary, MN · Accident · 1 fatal · Closed · Jan 23, 1968 · N5707Q · Destroyed
- [NTSB MKC67A0063](https://openairdocs.org/ntsb/MKC67A0063.md): Mooney M20C · Austin, MN · Accident · 1 fatal · Closed · Apr 29, 1967 · N2703W · Destroyed
- [NTSB MKC67D0396](https://openairdocs.org/ntsb/MKC67D0396.md): Piper PA-28 · Grand Marais, MN · Accident · Serious injuries · Closed · Jan 22, 1967 · N4559R · Destroyed
- [NTSB MKC67A0029](https://openairdocs.org/ntsb/MKC67A0029.md): Beech A23 · Fergus Falls, MN · Accident · 1 fatal · Closed · Oct 16, 1966 · N5692S · Destroyed
- [NTSB MKC66A0046](https://openairdocs.org/ntsb/MKC66A0046.md): Cessna 150E · Buffalo, MN · Accident · 2 fatal · Closed · Feb 27, 1966 · N3065J · Destroyed
- [NTSB MKC66A0028](https://openairdocs.org/ntsb/MKC66A0028.md): Piper PA-28 · Fairfax, MN · Accident · 1 fatal · Closed · Oct 19, 1965 · N7619W · Destroyed
- [NTSB MKC65A0066](https://openairdocs.org/ntsb/MKC65A0066.md): Beechcraft 35 · Intnl Falls, MN · Accident · 2 fatal · Closed · May 14, 1965 · N8836A · Destroyed
- [NTSB UNK65X1105](https://openairdocs.org/ntsb/UNK65X1105.md): Piper PA-22 · Winona, MN · Accident · 1 fatal · Closed · Dec 23, 1964 · N3142Z · Destroyed
- [NTSB UNK65X1093](https://openairdocs.org/ntsb/UNK65X1093.md): Beechcraft 95-B55 · Good Thunder, MN · Accident · 3 fatal · Closed · Dec 22, 1964 · N8849M · Destroyed
- [NTSB UNK65X0247](https://openairdocs.org/ntsb/UNK65X0247.md): Mooney M-20A · Cambridge, MN · Accident · 5 fatal · Closed · Oct 11, 1964 · N6063X · Destroyed

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
  crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
  current_codes AS (
    SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
      row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
    FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
    WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
      AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
  ),
  phases AS (
    SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
    FROM current_codes WHERE n = 1
    UNION ALL
    SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
    FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
    WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
  ),
  case_phases AS (
    SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
    FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
    LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
    WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
  )
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'MN' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 650)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/650/cases?state=MN

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.