# NTSB investigations: Unknown

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.

Page 36 of 40 · 1,978 cases

## Cases, newest first

- [NTSB ANC70A0041](https://openairdocs.org/ntsb/ANC70A0041.md): Cessna 180H · Pt.Alexander, AK · Accident · 2 fatal · Closed · Nov 12, 1969 · N8216V · Destroyed
- [NTSB OAK70A0031](https://openairdocs.org/ntsb/OAK70A0031.md): Cessna 172G · Missing Aircraft · Accident · 1 fatal · Closed · Nov 6, 1969 · N4145L · Destroyed
- [NTSB CHI70A0027](https://openairdocs.org/ntsb/CHI70A0027.md): Lear Jet 23A · Racine, WI · Accident · 7 fatal · Closed · Nov 6, 1969 · N1021B · Destroyed
- [NTSB MIA70A0033](https://openairdocs.org/ntsb/MIA70A0033.md): Beech V35 · Fort Gaines, GA · Accident · 1 fatal · Closed · Oct 18, 1969 · N7944M · Destroyed
- [NTSB ANC70A0035](https://openairdocs.org/ntsb/ANC70A0035.md): Bell 47J-2 · Fairbanks, AK · Accident · 1 fatal · Closed · Oct 15, 1969 · N73950 · Destroyed
- [NTSB MIA70A0031](https://openairdocs.org/ntsb/MIA70A0031.md): Brittnorman BN-2A · Missing Aircraft · Accident · 2 fatal · Closed · Oct 11, 1969 · N852JA · Destroyed
- [NTSB FTW70F0252](https://openairdocs.org/ntsb/FTW70F0252.md): Champion 7ECA · Alicia, AR · Accident · No injuries · Closed · Sep 23, 1969 · N2880G · Substantial damage
- [NTSB ANC70A0019](https://openairdocs.org/ntsb/ANC70A0019.md): Cessna 150 · Missing Aircraft · Accident · 1 fatal · Closed · Aug 31, 1969 · N3028S · Destroyed
- [NTSB FTW70A0026](https://openairdocs.org/ntsb/FTW70A0026.md): Cessna 150 · Missing Aircraft · Accident · 1 fatal · Closed · Aug 23, 1969 · N50509 · Destroyed
- [NTSB MIA70A0036](https://openairdocs.org/ntsb/MIA70A0036.md): Piper PA-22 · Missing Aircraft · Accident · 2 fatal · Closed · Aug 3, 1969 · N8971C · Destroyed
- [NTSB CHI70A0008](https://openairdocs.org/ntsb/CHI70A0008.md): Cessna 182 · Missing Aircraft · Accident · 2 fatal · Closed · Jul 18, 1969 · N3117R · Destroyed
- [NTSB DIA70F0034](https://openairdocs.org/ntsb/DIA70F0034.md): Piper J3C-65 · Clayton, NC · Accident · 1 fatal · Closed · Jul 10, 1969 · N70684 · Destroyed
- [NTSB NYC70A0008](https://openairdocs.org/ntsb/NYC70A0008.md): Piper PA-23 · Savannah, GA · Accident · 5 fatal · Closed · Jul 9, 1969 · N4310Y · Destroyed
- [NTSB MIA69A0097](https://openairdocs.org/ntsb/MIA69A0097.md): Beech B95 · Missing Aircraft · Accident · 1 fatal · Closed · Jun 29, 1969 · N590T · Destroyed
- [NTSB CHI70F0097](https://openairdocs.org/ntsb/CHI70F0097.md): Piper PA-18 · Berlin, WI · Accident · 1 fatal · Closed · Jun 21, 1969 · N4308Z · Destroyed
- [NTSB MIA70F0066](https://openairdocs.org/ntsb/MIA70F0066.md): Piper J3C-65 · Bonifay, FL · Accident · Serious injuries · Closed · Jun 3, 1969 · N87841 · Destroyed
- [NTSB CHI69A0097](https://openairdocs.org/ntsb/CHI69A0097.md): Beech 35 · Missing Aircraft · Accident · 4 fatal · Closed · May 21, 1969 · N3358V · Destroyed
- [NTSB ANC69A0056](https://openairdocs.org/ntsb/ANC69A0056.md): Cessna 150 · Anchorage, AK · Accident · 2 fatal · Closed · May 21, 1969 · N23041 · Destroyed
- [NTSB LAX69A0069](https://openairdocs.org/ntsb/LAX69A0069.md): Cessna 172G · Bg Bear Cty, CA · Accident · 3 fatal · Closed · May 17, 1969 · N4603L · Destroyed
- [NTSB OAK69A0066](https://openairdocs.org/ntsb/OAK69A0066.md): Piper PA-30 · Ripon, CA · Accident · 6 fatal · Closed · May 13, 1969 · N8672Y · Destroyed
- [NTSB NYC69A0091](https://openairdocs.org/ntsb/NYC69A0091.md): Piper PA-23 · Missing Aircraft · Accident · 6 fatal · Closed · Mar 29, 1969 · N6116Y · Destroyed
- [NTSB MIA69A0056](https://openairdocs.org/ntsb/MIA69A0056.md): Beech 50 · Missing Aircraft · Accident · 2 fatal · Closed · Mar 22, 1969 · N609R · Destroyed
- [NTSB NYC69A0086](https://openairdocs.org/ntsb/NYC69A0086.md): Douglas DC-4 · Missing Aircraft · Accident · 3 fatal · Closed · Mar 8, 1969 · N3821 · Destroyed
- [NTSB MIA69A0047](https://openairdocs.org/ntsb/MIA69A0047.md): Beech 95-C55 · Missing Aircraft · Accident · 1 fatal · Closed · Feb 15, 1969 · N9490S · Destroyed
- [NTSB FTW69A0050](https://openairdocs.org/ntsb/FTW69A0050.md): Cessna 150J · Farmerville, LA · Accident · 1 fatal · Closed · Jan 24, 1969 · N50468 · Destroyed
- [NTSB OAK69A0044](https://openairdocs.org/ntsb/OAK69A0044.md): Cessna 150G · Milpitas, CA · Accident · 2 fatal · Closed · Jan 15, 1969 · N8264F · Destroyed
- [NTSB ANC69A0035](https://openairdocs.org/ntsb/ANC69A0035.md): Cessna 185 · Missing Aircraft · Accident · 1 fatal · Closed · Jan 9, 1969 · N1656Z · Destroyed
- [NTSB DIA69A0032](https://openairdocs.org/ntsb/DIA69A0032.md): Piper PA-24 · Missing Aircraft · Accident · 2 fatal · Closed · Jan 5, 1969 · N8653P · Destroyed
- [NTSB CHI69A0061](https://openairdocs.org/ntsb/CHI69A0061.md): Piper PA-23 · Chicago, IL · Accident · 1 fatal · Closed · Dec 12, 1968 · N4878P · Destroyed
- [NTSB LAX69A0032](https://openairdocs.org/ntsb/LAX69A0032.md): Piper PA-32 · Avenal, CA · Accident · 1 fatal · Closed · Dec 10, 1968 · N3267W · Destroyed
- [NTSB OAK69A0035](https://openairdocs.org/ntsb/OAK69A0035.md): Beech 23 · Z · Accident · 2 fatal · Closed · Nov 27, 1968 · N2353L · Destroyed
- [NTSB FTW69F0321](https://openairdocs.org/ntsb/FTW69F0321.md): Cessna 150 · Bowie, TX · Accident · Serious injuries · Closed · Nov 13, 1968 · N23177 · Destroyed
- [NTSB ANC69A0029](https://openairdocs.org/ntsb/ANC69A0029.md): Cessna 185 · Anaktuvuk Ps, AK · Accident · 1 fatal · Closed · Nov 12, 1968 · N2256T · Substantial damage
- [NTSB ANC69A0028](https://openairdocs.org/ntsb/ANC69A0028.md): Cessna 180H · Anchorage, AK · Accident · 4 fatal · Closed · Nov 11, 1968 · N9932V · Destroyed
- [NTSB OAK69A0026](https://openairdocs.org/ntsb/OAK69A0026.md): Cessna 150H · Las Vegas, NV · Accident · 2 fatal · Closed · Oct 29, 1968 · N6655S · Destroyed
- [NTSB CHI69A0044](https://openairdocs.org/ntsb/CHI69A0044.md): Beech 65-80 · Houghton, MI · Accident · 3 fatal · Closed · Oct 23, 1968 · N303D · Destroyed
- [NTSB ANC69A0024](https://openairdocs.org/ntsb/ANC69A0024.md): Piper J3C-85 · Anchorage, AK · Accident · 2 fatal · Closed · Oct 23, 1968 · N42633 · Destroyed
- [NTSB CHI69A0043](https://openairdocs.org/ntsb/CHI69A0043.md): Republic RC-3 · Lake Erie, OH · Accident · 2 fatal · Closed · Oct 17, 1968 · N6194K · Destroyed
- [NTSB SEA69A0022](https://openairdocs.org/ntsb/SEA69A0022.md): N.American AT-6C · Veneta, OR · Accident · 2 fatal · Closed · Oct 2, 1968 · N5186V · Destroyed
- [NTSB MKC69F0297](https://openairdocs.org/ntsb/MKC69F0297.md): Piper PA-11 · Harvey, ND · Accident · No injuries · Closed · Oct 2, 1968 · N87986 · Substantial damage
- [NTSB NYC69D0191](https://openairdocs.org/ntsb/NYC69D0191.md): Cessna 172 · Oriskany, NY · Accident · No injuries · Closed · Sep 30, 1968 · N7064T · Destroyed
- [NTSB LAX69A0019](https://openairdocs.org/ntsb/LAX69A0019.md): Cessna 172 · Altadena, CA · Accident · 1 fatal · Closed · Sep 29, 1968 · N6280E · Destroyed
- [NTSB OAK69D0146](https://openairdocs.org/ntsb/OAK69D0146.md): Piper PA-32 · Lahaina, HI · Accident · 6 fatal · Closed · Sep 23, 1968 · N3770W · Destroyed
- [NTSB MIA69A0016](https://openairdocs.org/ntsb/MIA69A0016.md): Piper PA-28 · Eufaula, AL · Accident · 2 fatal · Closed · Sep 22, 1968 · N6544W · Destroyed
- [NTSB UNK68X0160](https://openairdocs.org/ntsb/UNK68X0160.md): Piper PA-22 · Z (Atlantic Ocean) · Accident · 2 fatal · Closed · Sep 8, 1968 · N3537P · Destroyed
- [NTSB FTW69F0191](https://openairdocs.org/ntsb/FTW69F0191.md): Piper PA-25 · Presidio, TX · Accident · 1 fatal · Closed · Sep 7, 1968 · N6271Z · Destroyed
- [NTSB FTW69A0014](https://openairdocs.org/ntsb/FTW69A0014.md): Aeronca 11AC · Idabel, OK · Accident · 2 fatal · Closed · Aug 31, 1968 · N85811 · Destroyed
- [NTSB DIA69A0010](https://openairdocs.org/ntsb/DIA69A0010.md): Cessna 172C · Rock Hall, MD · Accident · 2 fatal · Closed · Aug 23, 1968 · N1505Y · Destroyed
- [NTSB FTW69F0175](https://openairdocs.org/ntsb/FTW69F0175.md): Piper PA-30 · Lubbock, TX · Accident · No injuries · Closed · Aug 19, 1968 · N8586Y · Substantial damage
- [NTSB DIA69F0035](https://openairdocs.org/ntsb/DIA69F0035.md): Bensen Bowles · Leesburg, VA · Accident · 1 fatal · Closed · Jul 26, 1968 · N2090 · Destroyed

Next page: https://openairdocs.org/ntsb-phases/990/cases.md?page=37

## 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."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 990)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/990/cases?page=36

---
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.